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Hydrograph River at a Glance Download
Illinois River near Henry Stage (ft)Highest Observation: 31.17 ft at 9:15AM May 23, 2020Observed: 31.16 ft at 9:30AM May 23, 2020Observed: 31.15 ft at 9:45AM May 23, 2020Observed: 31.14 ft at 10:00AM May 23, 2020Observed: 31.13 ft at 10:15AM May 23, 2020Observed: 31.12 ft at 10:30AM May 23, 2020Observed: 31.14 ft at 10:45AM May 23, 2020Observed: 31.14 ft at 11:00AM May 23, 2020Observed: 31.11 ft at 11:15AM May 23, 2020Observed: 31.12 ft at 11:30AM May 23, 2020Observed: 31.1 ft at 11:45AM May 23, 2020Observed: 31.11 ft at 12:00PM May 23, 2020Observed: 31.11 ft at 12:15PM May 23, 2020Observed: 31.1 ft at 12:30PM May 23, 2020Observed: 31.09 ft at 12:45PM May 23, 2020Observed: 31.11 ft at 1:00PM May 23, 2020Observed: 31.1 ft at 1:15PM May 23, 2020Observed: 31.1 ft at 1:30PM May 23, 2020Observed: 31.12 ft at 1:45PM May 23, 2020Observed: 31.1 ft at 2:00PM May 23, 2020Observed: 31.07 ft at 2:15PM May 23, 2020Observed: 31.07 ft at 2:30PM May 23, 2020Observed: 31.07 ft at 2:45PM May 23, 2020Observed: 31.04 ft at 3:00PM May 23, 2020Observed: 31.05 ft at 3:15PM May 23, 2020Observed: 31.05 ft at 3:30PM May 23, 2020Observed: 31.04 ft at 3:45PM May 23, 2020Observed: 31.03 ft at 4:00PM May 23, 2020Observed: 31.04 ft at 4:15PM May 23, 2020Observed: 31.03 ft at 4:30PM May 23, 2020Observed: 31.03 ft at 4:45PM May 23, 2020Observed: 31.03 ft at 5:00PM May 23, 2020Observed: 31.04 ft at 5:15PM May 23, 2020Observed: 31.02 ft at 5:30PM May 23, 2020Observed: 31.04 ft at 5:45PM May 23, 2020Observed: 31.03 ft at 6:00PM May 23, 2020Observed: 31.03 ft at 6:15PM May 23, 2020Observed: 31.03 ft at 6:30PM May 23, 2020Observed: 31.02 ft at 6:45PM May 23, 2020Observed: 31.02 ft at 7:00PM May 23, 2020Observed: 31.01 ft at 7:15PM May 23, 2020Observed: 31 ft at 7:30PM May 23, 2020Observed: 31 ft at 7:45PM May 23, 2020Observed: 30.99 ft at 8:00PM May 23, 2020Observed: 30.98 ft at 8:15PM May 23, 2020Observed: 30.97 ft at 8:30PM May 23, 2020Observed: 30.97 ft at 8:45PM May 23, 2020Observed: 30.96 ft at 9:00PM May 23, 2020Observed: 30.95 ft at 9:15PM May 23, 2020Observed: 30.95 ft at 9:30PM May 23, 2020Observed: 30.94 ft at 9:45PM May 23, 2020Observed: 30.93 ft at 10:00PM May 23, 2020Observed: 30.93 ft at 10:15PM May 23, 2020Observed: 30.91 ft at 10:30PM May 23, 2020Observed: 30.91 ft at 10:45PM May 23, 2020Observed: 30.91 ft at 11:00PM May 23, 2020Observed: 30.91 ft at 11:15PM May 23, 2020Observed: 30.89 ft at 11:30PM May 23, 2020Observed: 30.9 ft at 11:45PM May 23, 2020Observed: 30.88 ft at 12:00AM May 24, 2020Observed: 30.88 ft at 12:15AM May 24, 2020Observed: 30.87 ft at 12:30AM May 24, 2020Observed: 30.86 ft at 12:45AM May 24, 2020Observed: 30.87 ft at 1:00AM May 24, 2020Observed: 30.86 ft at 1:15AM May 24, 2020Observed: 30.85 ft at 1:30AM May 24, 2020Observed: 30.86 ft at 1:45AM May 24, 2020Observed: 30.84 ft at 2:00AM May 24, 2020Observed: 30.83 ft at 2:15AM May 24, 2020Observed: 30.83 ft at 2:30AM May 24, 2020Observed: 30.83 ft at 2:45AM May 24, 2020Observed: 30.82 ft at 3:00AM May 24, 2020Observed: 30.82 ft at 3:15AM May 24, 2020Observed: 30.81 ft at 3:30AM May 24, 2020Observed: 30.79 ft at 3:45AM May 24, 2020Observed: 30.79 ft at 4:00AM May 24, 2020Observed: 30.79 ft at 4:15AM May 24, 2020Observed: 30.79 ft at 4:30AM May 24, 2020Observed: 30.78 ft at 4:45AM May 24, 2020Observed: 30.78 ft at 5:00AM May 24, 2020Observed: 30.77 ft at 5:15AM May 24, 2020Observed: 30.76 ft at 5:30AM May 24, 2020Observed: 30.78 ft at 5:45AM May 24, 2020Observed: 30.75 ft at 6:00AM May 24, 2020Observed: 30.75 ft at 6:15AM May 24, 2020Observed: 30.74 ft at 6:30AM May 24, 2020Observed: 30.73 ft at 6:45AM May 24, 2020Observed: 30.73 ft at 7:00AM May 24, 2020Observed: 30.72 ft at 7:15AM May 24, 2020Observed: 30.72 ft at 7:30AM May 24, 2020Observed: 30.71 ft at 7:45AM May 24, 2020Observed: 30.71 ft at 8:00AM May 24, 2020Observed: 30.7 ft at 8:15AM May 24, 2020Observed: 30.69 ft at 8:30AM May 24, 2020Observed: 30.68 ft at 8:45AM May 24, 2020Observed: 30.68 ft at 9:00AM May 24, 2020Observed: 30.67 ft at 9:15AM May 24, 2020Observed: 30.67 ft at 9:30AM May 24, 2020Observed: 30.67 ft at 9:45AM May 24, 2020Observed: 30.66 ft at 10:00AM May 24, 2020Observed: 30.66 ft at 10:15AM May 24, 2020Observed: 30.65 ft at 10:30AM May 24, 2020Observed: 30.64 ft at 10:45AM May 24, 2020Observed: 30.64 ft at 11:00AM May 24, 2020Observed: 30.64 ft at 11:15AM May 24, 2020Observed: 30.64 ft at 11:30AM May 24, 2020Observed: 30.63 ft at 11:45AM May 24, 2020Observed: 30.61 ft at 12:00PM May 24, 2020Observed: 30.61 ft at 12:15PM May 24, 2020Observed: 30.61 ft at 12:30PM May 24, 2020Observed: 30.6 ft at 12:45PM May 24, 2020Observed: 30.59 ft at 1:00PM May 24, 2020Observed: 30.59 ft at 1:15PM May 24, 2020Observed: 30.59 ft at 1:30PM May 24, 2020Observed: 30.59 ft at 1:45PM May 24, 2020Observed: 30.59 ft at 2:00PM May 24, 2020Observed: 30.58 ft at 2:15PM May 24, 2020Observed: 30.58 ft at 2:30PM May 24, 2020Observed: 30.57 ft at 2:45PM May 24, 2020Observed: 30.57 ft at 3:00PM May 24, 2020Observed: 30.57 ft at 3:15PM May 24, 2020Observed: 30.56 ft at 3:30PM May 24, 2020Observed: 30.56 ft at 3:45PM May 24, 2020Observed: 30.55 ft at 4:00PM May 24, 2020Observed: 30.55 ft at 4:15PM May 24, 2020Observed: 30.55 ft at 4:30PM May 24, 2020Observed: 30.54 ft at 4:45PM May 24, 2020Observed: 30.54 ft at 5:00PM May 24, 2020Observed: 30.53 ft at 5:15PM May 24, 2020Observed: 30.52 ft at 5:30PM May 24, 2020Observed: 30.52 ft at 5:45PM May 24, 2020Observed: 30.52 ft at 6:00PM May 24, 2020Observed: 30.52 ft at 6:15PM May 24, 2020Observed: 30.51 ft at 6:30PM May 24, 2020Observed: 30.5 ft at 6:45PM May 24, 2020Observed: 30.5 ft at 7:00PM May 24, 2020Observed: 30.5 ft at 7:15PM May 24, 2020Observed: 30.5 ft at 7:30PM May 24, 2020Observed: 30.49 ft at 7:45PM May 24, 2020Observed: 30.49 ft at 8:00PM May 24, 2020Observed: 30.49 ft at 8:15PM May 24, 2020Observed: 30.48 ft at 8:30PM May 24, 2020Observed: 30.48 ft at 8:45PM May 24, 2020Observed: 30.47 ft at 9:00PM May 24, 2020Observed: 30.47 ft at 9:15PM May 24, 2020Observed: 30.46 ft at 9:30PM May 24, 2020Observed: 30.47 ft at 9:45PM May 24, 2020Observed: 30.46 ft at 10:00PM May 24, 2020Observed: 30.44 ft at 10:15PM May 24, 2020Observed: 30.45 ft at 10:30PM May 24, 2020Observed: 30.44 ft at 10:45PM May 24, 2020Observed: 30.44 ft at 11:00PM May 24, 2020Observed: 30.44 ft at 11:15PM May 24, 2020Observed: 30.43 ft at 11:30PM May 24, 2020Observed: 30.43 ft at 11:45PM May 24, 2020Observed: 30.42 ft at 12:00AM May 25, 2020Observed: 30.42 ft at 12:15AM May 25, 2020Observed: 30.41 ft at 12:30AM May 25, 2020Observed: 30.42 ft at 12:45AM May 25, 2020Observed: 30.41 ft at 1:00AM May 25, 2020Observed: 30.41 ft at 1:15AM May 25, 2020Observed: 30.4 ft at 1:30AM May 25, 2020Observed: 30.4 ft at 1:45AM May 25, 2020Observed: 30.4 ft at 2:00AM May 25, 2020Observed: 30.4 ft at 2:15AM May 25, 2020Observed: 30.4 ft at 2:30AM May 25, 2020Observed: 30.39 ft at 2:45AM May 25, 2020Observed: 30.38 ft at 3:00AM May 25, 2020Observed: 30.38 ft at 3:15AM May 25, 2020Observed: 30.37 ft at 3:30AM May 25, 2020Observed: 30.36 ft at 3:45AM May 25, 2020Observed: 30.36 ft at 4:00AM May 25, 2020Observed: 30.36 ft at 4:15AM May 25, 2020Observed: 30.36 ft at 4:30AM May 25, 2020Observed: 30.36 ft at 4:45AM May 25, 2020Observed: 30.34 ft at 5:00AM May 25, 2020Observed: 30.35 ft at 5:15AM May 25, 2020Observed: 30.35 ft at 5:30AM May 25, 2020Observed: 30.34 ft at 5:45AM May 25, 2020Observed: 30.34 ft at 6:00AM May 25, 2020Observed: 30.33 ft at 6:15AM May 25, 2020Observed: 30.33 ft at 6:30AM May 25, 2020Observed: 30.33 ft at 6:45AM May 25, 2020Observed: 30.31 ft at 7:00AM May 25, 2020Observed: 30.31 ft at 7:15AM May 25, 2020Observed: 30.31 ft at 7:30AM May 25, 2020Observed: 30.3 ft at 7:45AM May 25, 2020Observed: 30.31 ft at 8:00AM May 25, 2020Observed: 30.3 ft at 8:15AM May 25, 2020Observed: 30.29 ft at 8:30AM May 25, 2020Observed: 30.28 ft at 8:45AM May 25, 2020Observed: 30.29 ft at 9:00AM May 25, 2020Observed: 30.28 ft at 9:15AM May 25, 2020Observed: 30.27 ft at 9:30AM May 25, 2020Observed: 30.26 ft at 9:45AM May 25, 2020Observed: 30.25 ft at 10:00AM May 25, 2020Observed: 30.25 ft at 10:15AM May 25, 2020Observed: 30.24 ft at 10:30AM May 25, 2020Observed: 30.23 ft at 10:45AM May 25, 2020Observed: 30.23 ft at 11:00AM May 25, 2020Observed: 30.22 ft at 11:15AM May 25, 2020Observed: 30.22 ft at 11:30AM May 25, 2020Observed: 30.22 ft at 11:45AM May 25, 2020Observed: 30.22 ft at 12:00PM May 25, 2020Observed: 30.22 ft at 12:15PM May 25, 2020Observed: 30.22 ft at 12:30PM May 25, 2020Observed: 30.21 ft at 12:45PM May 25, 2020Observed: 30.21 ft at 1:00PM May 25, 2020Observed: 30.2 ft at 1:15PM May 25, 2020Observed: 30.19 ft at 1:30PM May 25, 2020Observed: 30.18 ft at 1:45PM May 25, 2020Observed: 30.19 ft at 2:00PM May 25, 2020Observed: 30.19 ft at 2:15PM May 25, 2020Observed: 30.17 ft at 2:30PM May 25, 2020Observed: 30.16 ft at 2:45PM May 25, 2020Observed: 30.18 ft at 3:00PM May 25, 2020Observed: 30.2 ft at 3:15PM May 25, 2020Observed: 30.21 ft at 3:30PM May 25, 2020Observed: 30.2 ft at 3:45PM May 25, 2020Observed: 30.21 ft at 4:00PM May 25, 2020Observed: 30.19 ft at 4:15PM May 25, 2020Observed: 30.17 ft at 4:30PM May 25, 2020Observed: 30.18 ft at 4:45PM May 25, 2020Observed: 30.17 ft at 5:00PM May 25, 2020Observed: 30.17 ft at 5:15PM May 25, 2020Observed: 30.15 ft at 5:30PM May 25, 2020Observed: 30.15 ft at 5:45PM May 25, 2020Observed: 30.15 ft at 6:00PM May 25, 2020Observed: 30.16 ft at 6:15PM May 25, 2020Observed: 30.17 ft at 6:30PM May 25, 2020Observed: 30.15 ft at 6:45PM May 25, 2020Observed: 30.15 ft at 7:00PM May 25, 2020Observed: 30.09 ft at 7:15PM May 25, 2020Observed: 30.12 ft at 7:30PM May 25, 2020Observed: 30.14 ft at 7:45PM May 25, 2020Observed: 30.14 ft at 8:00PM May 25, 2020Observed: 30.14 ft at 8:15PM May 25, 2020Observed: 30.14 ft at 8:30PM May 25, 2020Observed: 30.13 ft at 8:45PM May 25, 2020Observed: 30.14 ft at 9:00PM May 25, 2020Observed: 30.15 ft at 9:15PM May 25, 2020Observed: 30.14 ft at 9:30PM May 25, 2020Observed: 30.18 ft at 9:45PM May 25, 2020Observed: 30.18 ft at 10:00PM May 25, 2020Observed: 30.21 ft at 10:15PM May 25, 2020Observed: 30.19 ft at 10:30PM May 25, 2020Observed: 30.21 ft at 10:45PM May 25, 2020Observed: 30.23 ft at 11:00PM May 25, 2020Observed: 30.22 ft at 11:15PM May 25, 2020Observed: 30.18 ft at 11:30PM May 25, 2020Observed: 30.17 ft at 11:45PM May 25, 2020Observed: 30.16 ft at 12:00AM May 26, 2020Observed: 30.15 ft at 12:15AM May 26, 2020Observed: 30.14 ft at 12:30AM May 26, 2020Observed: 30.13 ft at 12:45AM May 26, 2020Observed: 30.14 ft at 1:00AM May 26, 2020Observed: 30.14 ft at 1:15AM May 26, 2020Observed: 30.15 ft at 1:30AM May 26, 2020Observed: 30.14 ft at 1:45AM May 26, 2020Observed: 30.14 ft at 2:00AM May 26, 2020Observed: 30.14 ft at 2:15AM May 26, 2020Observed: 30.13 ft at 2:30AM May 26, 2020Observed: 30.13 ft at 2:45AM May 26, 2020Observed: 30.12 ft at 3:00AM May 26, 2020Observed: 30.12 ft at 3:15AM May 26, 2020Observed: 30.12 ft at 3:30AM May 26, 2020Observed: 30.11 ft at 3:45AM May 26, 2020Observed: 30.12 ft at 4:00AM May 26, 2020Observed: 30.11 ft at 4:15AM May 26, 2020Observed: 30.11 ft at 4:30AM May 26, 2020Observed: 30.1 ft at 4:45AM May 26, 2020Observed: 30.1 ft at 5:00AM May 26, 2020Observed: 30.09 ft at 5:15AM May 26, 2020Observed: 30.09 ft at 5:30AM May 26, 2020Observed: 30.08 ft at 5:45AM May 26, 2020Observed: 30.08 ft at 6:00AM May 26, 2020Observed: 30.08 ft at 6:15AM May 26, 2020Observed: 30.07 ft at 6:30AM May 26, 2020Observed: 30.06 ft at 6:45AM May 26, 2020Observed: 30.06 ft at 7:00AM May 26, 2020Observed: 30.06 ft at 7:15AM May 26, 2020Observed: 30.05 ft at 7:30AM May 26, 2020Observed: 30.04 ft at 7:45AM May 26, 2020Observed: 30.02 ft at 9:00AM May 26, 2020Observed: 30.02 ft at 9:15AM May 26, 2020Observed: 30.01 ft at 9:30AM May 26, 2020Observed: 30 ft at 9:45AM May 26, 2020Observed: 30 ft at 10:00AM May 26, 2020Observed: 30 ft at 10:15AM May 26, 2020Observed: 29.99 ft at 10:30AM May 26, 2020Observed: 29.99 ft at 10:45AM May 26, 2020Observed: 29.98 ft at 11:00AM May 26, 2020Observed: 29.97 ft at 11:15AM May 26, 2020Observed: 29.97 ft at 11:30AM May 26, 2020Observed: 29.97 ft at 11:45AM May 26, 2020Observed: 29.96 ft at 12:00PM May 26, 2020Observed: 29.96 ft at 12:15PM May 26, 2020Observed: 29.95 ft at 12:30PM May 26, 2020Observed: 29.95 ft at 12:45PM May 26, 2020Observed: 29.95 ft at 1:00PM May 26, 2020Observed: 29.94 ft at 1:15PM May 26, 2020Observed: 29.94 ft at 1:30PM May 26, 2020Observed: 29.94 ft at 1:45PM May 26, 2020Observed: 29.92 ft at 2:00PM May 26, 2020Observed: 29.93 ft at 2:15PM May 26, 2020Observed: 29.94 ft at 2:30PM May 26, 2020Observed: 29.93 ft at 2:45PM May 26, 2020Observed: 29.92 ft at 3:00PM May 26, 2020Observed: 29.91 ft at 3:15PM May 26, 2020Observed: 29.91 ft at 3:30PM May 26, 2020Observed: 29.9 ft at 3:45PM May 26, 2020Observed: 29.9 ft at 4:00PM May 26, 2020Observed: 29.89 ft at 4:15PM May 26, 2020Observed: 29.89 ft at 4:30PM May 26, 2020Observed: 29.87 ft at 4:45PM May 26, 2020Observed: 29.91 ft at 5:00PM May 26, 2020Observed: 29.9 ft at 5:15PM May 26, 2020Observed: 29.87 ft at 5:30PM May 26, 2020Observed: 29.86 ft at 5:45PM May 26, 2020Observed: 29.88 ft at 6:00PM May 26, 2020Observed: 29.88 ft at 6:15PM May 26, 2020Observed: 29.87 ft at 6:30PM May 26, 2020Observed: 29.87 ft at 6:45PM May 26, 2020Observed: 29.86 ft at 7:00PM May 26, 2020Observed: 29.84 ft at 7:15PM May 26, 2020Observed: 29.84 ft at 7:30PM May 26, 2020Observed: 29.84 ft at 7:45PM May 26, 2020Observed: 29.84 ft at 8:00PM May 26, 2020Observed: 29.83 ft at 8:15PM May 26, 2020Observed: 29.83 ft at 8:30PM May 26, 2020Observed: 29.83 ft at 8:45PM May 26, 2020Observed: 29.82 ft at 9:00PM May 26, 2020Observed: 29.82 ft at 9:15PM May 26, 2020Observed: 29.81 ft at 9:30PM May 26, 2020Observed: 29.8 ft at 9:45PM May 26, 2020Observed: 29.79 ft at 10:00PM May 26, 2020Observed: 29.79 ft at 10:15PM May 26, 2020Observed: 29.78 ft at 10:30PM May 26, 2020Observed: 29.77 ft at 10:45PM May 26, 2020Observed: 29.77 ft at 11:00PM May 26, 2020Observed: 29.76 ft at 11:15PM May 26, 2020Observed: 29.76 ft at 11:30PM May 26, 2020Observed: 29.75 ft at 11:45PM May 26, 2020Observed: 29.74 ft at 12:00AM May 27, 2020Observed: 29.74 ft at 12:15AM May 27, 2020Observed: 29.73 ft at 12:30AM May 27, 2020Observed: 29.73 ft at 12:45AM May 27, 2020Observed: 29.72 ft at 1:00AM May 27, 2020Observed: 29.71 ft at 1:15AM May 27, 2020Observed: 29.7 ft at 1:30AM May 27, 2020Observed: 29.7 ft at 1:45AM May 27, 2020Observed: 29.69 ft at 2:00AM May 27, 2020Observed: 29.68 ft at 2:15AM May 27, 2020Observed: 29.68 ft at 2:30AM May 27, 2020Observed: 29.67 ft at 2:45AM May 27, 2020Observed: 29.67 ft at 3:00AM May 27, 2020Observed: 29.66 ft at 3:15AM May 27, 2020Observed: 29.65 ft at 3:30AM May 27, 2020Observed: 29.65 ft at 3:45AM May 27, 2020Observed: 29.65 ft at 4:00AM May 27, 2020Observed: 29.63 ft at 4:15AM May 27, 2020Observed: 29.62 ft at 4:30AM May 27, 2020Observed: 29.62 ft at 4:45AM May 27, 2020Observed: 29.61 ft at 5:00AM May 27, 2020Observed: 29.61 ft at 5:15AM May 27, 2020Observed: 29.6 ft at 5:30AM May 27, 2020Observed: 29.59 ft at 5:45AM May 27, 2020Observed: 29.59 ft at 6:00AM May 27, 2020Observed: 29.57 ft at 6:15AM May 27, 2020Observed: 29.57 ft at 6:30AM May 27, 2020Observed: 29.56 ft at 6:45AM May 27, 2020Observed: 29.56 ft at 7:00AM May 27, 2020Observed: 29.55 ft at 7:15AM May 27, 2020Observed: 29.55 ft at 7:30AM May 27, 2020Observed: 29.54 ft at 7:45AM May 27, 2020Observed: 29.53 ft at 8:00AM May 27, 2020Observed: 29.53 ft at 8:15AM May 27, 2020Observed: 29.52 ft at 8:30AM May 27, 2020Observed: 29.52 ft at 8:45AM May 27, 2020Observed: 29.5 ft at 9:00AM May 27, 2020Observed: 29.5 ft at 9:15AM May 27, 2020Observed: 29.5 ft at 9:30AM May 27, 2020Observed: 29.47 ft at 9:45AM May 27, 2020Observed: 29.48 ft at 10:00AM May 27, 2020Observed: 29.47 ft at 10:15AM May 27, 2020Observed: 29.47 ft at 10:30AM May 27, 2020Observed: 29.46 ft at 10:45AM May 27, 2020Observed: 29.47 ft at 11:00AM May 27, 2020Observed: 29.44 ft at 11:15AM May 27, 2020Observed: 29.43 ft at 11:30AM May 27, 2020Observed: 29.42 ft at 11:45AM May 27, 2020Observed: 29.43 ft at 12:00PM May 27, 2020Observed: 29.43 ft at 12:15PM May 27, 2020Observed: 29.42 ft at 12:30PM May 27, 2020Observed: 29.41 ft at 12:45PM May 27, 2020Observed: 29.4 ft at 1:00PM May 27, 2020Observed: 29.4 ft at 1:15PM May 27, 2020Observed: 29.38 ft at 1:30PM May 27, 2020Observed: 29.38 ft at 1:45PM May 27, 2020Observed: 29.38 ft at 2:00PM May 27, 2020Observed: 29.37 ft at 2:15PM May 27, 2020Observed: 29.36 ft at 2:30PM May 27, 2020Observed: 29.37 ft at 2:45PM May 27, 2020Observed: 29.35 ft at 3:00PM May 27, 2020Observed: 29.35 ft at 3:15PM May 27, 2020Observed: 29.34 ft at 3:30PM May 27, 2020Observed: 29.33 ft at 3:45PM May 27, 2020Observed: 29.33 ft at 4:00PM May 27, 2020Observed: 29.32 ft at 4:15PM May 27, 2020Observed: 29.32 ft at 4:30PM May 27, 2020Observed: 29.3 ft at 4:45PM May 27, 2020Observed: 29.29 ft at 5:00PM May 27, 2020Observed: 29.3 ft at 5:15PM May 27, 2020Observed: 29.26 ft at 5:30PM May 27, 2020Observed: 29.29 ft at 5:45PM May 27, 2020Observed: 29.29 ft at 6:00PM May 27, 2020Observed: 29.3 ft at 6:15PM May 27, 2020Observed: 29.29 ft at 6:30PM May 27, 2020Observed: 29.27 ft at 6:45PM May 27, 2020Observed: 29.26 ft at 7:00PM May 27, 2020Observed: 29.25 ft at 7:15PM May 27, 2020Observed: 29.24 ft at 7:30PM May 27, 2020Observed: 29.23 ft at 7:45PM May 27, 2020Observed: 29.23 ft at 8:00PM May 27, 2020Observed: 29.23 ft at 8:15PM May 27, 2020Observed: 29.22 ft at 8:30PM May 27, 2020Observed: 29.22 ft at 8:45PM May 27, 2020Observed: 29.2 ft at 9:00PM May 27, 2020Observed: 29.2 ft at 9:15PM May 27, 2020Observed: 29.2 ft at 9:30PM May 27, 2020Observed: 29.19 ft at 9:45PM May 27, 2020Observed: 29.18 ft at 10:00PM May 27, 2020Observed: 29.17 ft at 10:15PM May 27, 2020Observed: 29.17 ft at 10:30PM May 27, 2020Observed: 29.16 ft at 10:45PM May 27, 2020Observed: 29.16 ft at 11:00PM May 27, 2020Observed: 29.15 ft at 11:15PM May 27, 2020Observed: 29.14 ft at 11:30PM May 27, 2020Observed: 29.13 ft at 11:45PM May 27, 2020Observed: 29.12 ft at 12:00AM May 28, 2020Observed: 29.12 ft at 12:15AM May 28, 2020Observed: 29.11 ft at 12:30AM May 28, 2020Observed: 29.11 ft at 12:45AM May 28, 2020Observed: 29.1 ft at 1:00AM May 28, 2020Observed: 29.09 ft at 1:15AM May 28, 2020Observed: 29.08 ft at 1:30AM May 28, 2020Observed: 29.08 ft at 1:45AM May 28, 2020Observed: 29.07 ft at 2:00AM May 28, 2020Observed: 29.07 ft at 2:15AM May 28, 2020Observed: 29.06 ft at 2:30AM May 28, 2020Observed: 29.05 ft at 2:45AM May 28, 2020Observed: 29.05 ft at 3:00AM May 28, 2020Observed: 29.04 ft at 3:15AM May 28, 2020Observed: 29.04 ft at 3:30AM May 28, 2020Observed: 29.03 ft at 3:45AM May 28, 2020Observed: 29.03 ft at 4:00AM May 28, 2020Observed: 29.02 ft at 4:15AM May 28, 2020Observed: 29.02 ft at 4:30AM May 28, 2020Observed: 29.01 ft at 4:45AM May 28, 2020Observed: 29 ft at 5:00AM May 28, 2020Observed: 29 ft at 5:15AM May 28, 2020Observed: 28.99 ft at 5:30AM May 28, 2020Observed: 28.99 ft at 5:45AM May 28, 2020Observed: 28.98 ft at 6:00AM May 28, 2020Observed: 28.97 ft at 6:15AM May 28, 2020Observed: 28.97 ft at 6:30AM May 28, 2020Observed: 28.96 ft at 6:45AM May 28, 2020Observed: 28.95 ft at 7:00AM May 28, 2020Observed: 28.95 ft at 7:15AM May 28, 2020Observed: 28.94 ft at 7:30AM May 28, 2020Observed: 28.94 ft at 7:45AM May 28, 2020Observed: 28.93 ft at 8:00AM May 28, 2020Observed: 28.92 ft at 8:15AM May 28, 2020Observed: 28.92 ft at 8:30AM May 28, 2020Observed: 28.91 ft at 8:45AM May 28, 2020Observed: 28.91 ft at 9:00AM May 28, 2020Observed: 28.9 ft at 9:15AM May 28, 2020Observed: 28.9 ft at 9:30AM May 28, 2020Observed: 28.89 ft at 9:45AM May 28, 2020Observed: 28.88 ft at 10:00AM May 28, 2020Observed: 28.87 ft at 10:15AM May 28, 2020Observed: 28.86 ft at 10:30AM May 28, 2020Observed: 28.86 ft at 10:45AM May 28, 2020Observed: 28.85 ft at 11:00AM May 28, 2020Observed: 28.84 ft at 11:15AM May 28, 2020Observed: 28.83 ft at 11:30AM May 28, 2020Observed: 28.83 ft at 11:45AM May 28, 2020Observed: 28.82 ft at 12:00PM May 28, 2020Observed: 28.81 ft at 12:15PM May 28, 2020Observed: 28.8 ft at 12:30PM May 28, 2020Observed: 28.79 ft at 12:45PM May 28, 2020Observed: 28.79 ft at 1:00PM May 28, 2020Observed: 28.79 ft at 1:15PM May 28, 2020Observed: 28.79 ft at 1:30PM May 28, 2020Observed: 28.78 ft at 1:45PM May 28, 2020Observed: 28.78 ft at 2:00PM May 28, 2020Observed: 28.78 ft at 2:15PM May 28, 2020Observed: 28.78 ft at 2:30PM May 28, 2020Observed: 28.77 ft at 2:45PM May 28, 2020Observed: 28.76 ft at 3:00PM May 28, 2020Observed: 28.75 ft at 3:15PM May 28, 2020Observed: 28.74 ft at 3:30PM May 28, 2020Observed: 28.74 ft at 3:45PM May 28, 2020Observed: 28.73 ft at 4:00PM May 28, 2020Observed: 28.72 ft at 4:15PM May 28, 2020Observed: 28.72 ft at 4:30PM May 28, 2020Observed: 28.72 ft at 4:45PM May 28, 2020Observed: 28.72 ft at 5:00PM May 28, 2020Observed: 28.74 ft at 5:15PM May 28, 2020Observed: 28.75 ft at 5:30PM May 28, 2020Observed: 28.78 ft at 5:45PM May 28, 2020Observed: 28.82 ft at 6:00PM May 28, 2020Observed: 28.8 ft at 6:15PM May 28, 2020Observed: 28.72 ft at 6:30PM May 28, 2020Observed: 28.7 ft at 6:45PM May 28, 2020Observed: 28.7 ft at 7:00PM May 28, 2020Observed: 28.7 ft at 7:15PM May 28, 2020Observed: 28.7 ft at 7:30PM May 28, 2020Observed: 28.7 ft at 7:45PM May 28, 2020Observed: 28.71 ft at 8:00PM May 28, 2020Observed: 28.72 ft at 8:15PM May 28, 2020Observed: 28.71 ft at 8:30PM May 28, 2020Observed: 28.71 ft at 8:45PM May 28, 2020Observed: 28.71 ft at 9:00PM May 28, 2020Observed: 28.71 ft at 9:15PM May 28, 2020Observed: 28.69 ft at 9:30PM May 28, 2020Observed: 28.68 ft at 9:45PM May 28, 2020Observed: 28.68 ft at 10:00PM May 28, 2020Observed: 28.67 ft at 10:15PM May 28, 2020Observed: 28.66 ft at 10:30PM May 28, 2020Observed: 28.66 ft at 10:45PM May 28, 2020Observed: 28.64 ft at 11:00PM May 28, 2020Observed: 28.64 ft at 11:15PM May 28, 2020Observed: 28.63 ft at 11:30PM May 28, 2020Observed: 28.63 ft at 11:45PM May 28, 2020Observed: 28.63 ft at 12:00AM May 29, 2020Observed: 28.63 ft at 12:15AM May 29, 2020Observed: 28.62 ft at 12:30AM May 29, 2020Observed: 28.62 ft at 12:45AM May 29, 2020Observed: 28.62 ft at 1:00AM May 29, 2020Observed: 28.61 ft at 1:15AM May 29, 2020Observed: 28.6 ft at 1:30AM May 29, 2020Observed: 28.59 ft at 1:45AM May 29, 2020Observed: 28.58 ft at 2:00AM May 29, 2020Observed: 28.58 ft at 2:15AM May 29, 2020Observed: 28.57 ft at 2:30AM May 29, 2020Observed: 28.56 ft at 2:45AM May 29, 2020Observed: 28.56 ft at 3:00AM May 29, 2020Observed: 28.55 ft at 3:15AM May 29, 2020Observed: 28.55 ft at 3:30AM May 29, 2020Observed: 28.54 ft at 3:45AM May 29, 2020Observed: 28.53 ft at 4:00AM May 29, 2020Observed: 28.52 ft at 4:15AM May 29, 2020Observed: 28.52 ft at 4:30AM May 29, 2020Observed: 28.52 ft at 4:45AM May 29, 2020Observed: 28.5 ft at 5:00AM May 29, 2020Observed: 28.5 ft at 5:15AM May 29, 2020Observed: 28.49 ft at 5:30AM May 29, 2020Observed: 28.48 ft at 5:45AM May 29, 2020Observed: 28.48 ft at 6:00AM May 29, 2020Observed: 28.47 ft at 6:15AM May 29, 2020Observed: 28.47 ft at 6:30AM May 29, 2020Observed: 28.46 ft at 6:45AM May 29, 2020Observed: 28.46 ft at 7:00AM May 29, 2020Observed: 28.45 ft at 7:15AM May 29, 2020Observed: 28.44 ft at 7:30AM May 29, 2020Observed: 28.43 ft at 7:45AM May 29, 2020Observed: 28.43 ft at 8:00AM May 29, 2020Observed: 28.43 ft at 8:15AM May 29, 2020Observed: 28.41 ft at 8:30AM May 29, 2020Observed: 28.41 ft at 8:45AM May 29, 2020Observed: 28.39 ft at 9:00AM May 29, 2020Observed: 28.39 ft at 9:15AM May 29, 2020Observed: 28.38 ft at 9:30AM May 29, 2020Observed: 28.37 ft at 9:45AM May 29, 2020Observed: 28.36 ft at 10:00AM May 29, 2020Observed: 28.35 ft at 10:15AM May 29, 2020Observed: 28.34 ft at 10:30AM May 29, 2020Observed: 28.33 ft at 10:45AM May 29, 2020Observed: 28.33 ft at 11:00AM May 29, 2020Observed: 28.32 ft at 11:15AM May 29, 2020Observed: 28.32 ft at 11:30AM May 29, 2020Observed: 28.3 ft at 11:45AM May 29, 2020Observed: 28.31 ft at 12:00PM May 29, 2020Observed: 28.3 ft at 12:15PM May 29, 2020Observed: 28.29 ft at 12:30PM May 29, 2020Observed: 28.29 ft at 12:45PM May 29, 2020Observed: 28.28 ft at 1:00PM May 29, 2020Observed: 28.27 ft at 1:15PM May 29, 2020Observed: 28.25 ft at 1:30PM May 29, 2020Observed: 28.25 ft at 1:45PM May 29, 2020Observed: 28.26 ft at 2:00PM May 29, 2020Observed: 28.23 ft at 2:15PM May 29, 2020Observed: 28.24 ft at 2:30PM May 29, 2020Observed: 28.23 ft at 2:45PM May 29, 2020Observed: 28.23 ft at 3:00PM May 29, 2020Observed: 28.22 ft at 3:15PM May 29, 2020Observed: 28.19 ft at 3:30PM May 29, 2020Observed: 28.2 ft at 3:45PM May 29, 2020Observed: 28.19 ft at 4:00PM May 29, 2020Observed: 28.19 ft at 4:15PM May 29, 2020Observed: 28.17 ft at 4:30PM May 29, 2020Observed: 28.16 ft at 4:45PM May 29, 2020Observed: 28.16 ft at 5:00PM May 29, 2020Observed: 28.17 ft at 5:15PM May 29, 2020Observed: 28.15 ft at 5:30PM May 29, 2020Observed: 28.14 ft at 5:45PM May 29, 2020Observed: 28.12 ft at 6:00PM May 29, 2020Observed: 28.12 ft at 6:15PM May 29, 2020Observed: 28.11 ft at 6:30PM May 29, 2020Observed: 28.11 ft at 6:45PM May 29, 2020Observed: 28.1 ft at 7:00PM May 29, 2020Observed: 28.09 ft at 7:15PM May 29, 2020Observed: 28.07 ft at 7:30PM May 29, 2020Observed: 28.07 ft at 7:45PM May 29, 2020Observed: 28.06 ft at 8:00PM May 29, 2020Observed: 28.06 ft at 8:15PM May 29, 2020Observed: 28.05 ft at 8:30PM May 29, 2020Observed: 28.05 ft at 8:45PM May 29, 2020Observed: 28.04 ft at 9:00PM May 29, 2020Observed: 28.03 ft at 9:15PM May 29, 2020Observed: 28.03 ft at 9:30PM May 29, 2020Observed: 28.02 ft at 9:45PM May 29, 2020Observed: 28.02 ft at 10:00PM May 29, 2020Observed: 28 ft at 10:15PM May 29, 2020Observed: 28.01 ft at 10:30PM May 29, 2020Observed: 28 ft at 10:45PM May 29, 2020Observed: 27.99 ft at 11:00PM May 29, 2020Observed: 27.98 ft at 11:15PM May 29, 2020Observed: 27.98 ft at 11:30PM May 29, 2020Observed: 27.98 ft at 11:45PM May 29, 2020Observed: 27.97 ft at 12:00AM May 30, 2020Observed: 27.96 ft at 12:15AM May 30, 2020Observed: 27.95 ft at 12:30AM May 30, 2020Observed: 27.95 ft at 12:45AM May 30, 2020Observed: 27.94 ft at 1:00AM May 30, 2020Observed: 27.93 ft at 1:15AM May 30, 2020Observed: 27.93 ft at 1:30AM May 30, 2020Observed: 27.92 ft at 1:45AM May 30, 2020Observed: 27.92 ft at 2:00AM May 30, 2020Observed: 27.91 ft at 2:15AM May 30, 2020Observed: 27.9 ft at 2:30AM May 30, 2020Observed: 27.9 ft at 2:45AM May 30, 2020Observed: 27.89 ft at 3:00AM May 30, 2020Observed: 27.89 ft at 3:15AM May 30, 2020Observed: 27.88 ft at 3:30AM May 30, 2020Observed: 27.87 ft at 3:45AM May 30, 2020Observed: 27.87 ft at 4:00AM May 30, 2020Observed: 27.86 ft at 4:15AM May 30, 2020Observed: 27.85 ft at 4:30AM May 30, 2020Observed: 27.85 ft at 4:45AM May 30, 2020Observed: 27.84 ft at 5:00AM May 30, 2020Observed: 27.83 ft at 5:15AM May 30, 2020Observed: 27.83 ft at 5:30AM May 30, 2020Observed: 27.82 ft at 5:45AM May 30, 2020Observed: 27.81 ft at 6:00AM May 30, 2020Observed: 27.81 ft at 6:15AM May 30, 2020Observed: 27.8 ft at 6:30AM May 30, 2020Observed: 27.79 ft at 6:45AM May 30, 2020Observed: 27.78 ft at 7:00AM May 30, 2020Observed: 27.77 ft at 7:15AM May 30, 2020Observed: 27.76 ft at 7:30AM May 30, 2020Observed: 27.76 ft at 7:45AM May 30, 2020Observed: 27.75 ft at 8:00AM May 30, 2020Observed: 27.76 ft at 8:15AM May 30, 2020Observed: 27.7 ft at 8:30AM May 30, 2020Observed: 27.73 ft at 8:45AM May 30, 2020Highest Forecast: 27.6 ft 1:00PM May 30, 2020Forecast: 27.5 ft 7:00PM May 30, 2020Forecast: 27.4 ft 1:00AM May 31, 2020Forecast: 27.2 ft 7:00AM May 31, 2020Forecast: 27.1 ft 1:00PM May 31, 2020Forecast: 26.9 ft 7:00PM May 31, 2020Forecast: 26.8 ft 1:00AM Jun 01, 2020Forecast: 26.6 ft 7:00AM Jun 01, 2020Forecast: 26.5 ft 1:00PM Jun 01, 2020Forecast: 26.4 ft 7:00PM Jun 01, 2020Forecast: 26.2 ft 1:00AM Jun 02, 2020Forecast: 26.1 ft 7:00AM Jun 02, 2020Forecast: 25.9 ft 1:00PM Jun 02, 2020Forecast: 25.8 ft 7:00PM Jun 02, 2020Forecast: 25.6 ft 1:00AM Jun 03, 2020Forecast: 25.5 ft 7:00AM Jun 03, 2020Forecast: 25.4 ft 1:00PM Jun 03, 2020Forecast: 25.2 ft 7:00PM Jun 03, 2020Forecast: 25.1 ft 1:00AM Jun 04, 2020Forecast: 24.9 ft 7:00AM Jun 04, 2020Forecast: 24.8 ft 1:00PM Jun 04, 2020Forecast: 24.6 ft 7:00PM Jun 04, 2020Forecast: 24.5 ft 1:00AM Jun 05, 2020Forecast: 24.4 ft 7:00AM Jun 05, 2020Forecast: 24.2 ft 1:00PM Jun 05, 2020Forecast: 24.1 ft 7:00PM Jun 05, 2020Forecast: 23.9 ft 1:00AM Jun 06, 2020Forecast: 23.8 ft 7:00AM Jun 06, 2020USGS--Water Resources of the United StatesHNYI2(plotting HGIRG) Graph Created (9:07AM May 30, 2020)ObservedForecast (issued 8:47AM May 30)Latest observed value: 27.73 ft at 8:45 AM CDT 30-May-2020. Flood Stage is 23 ft
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About this graph
Tabular Data (UTC)
Tabular Data (CDT)
XML Data
RSS Files
Datum: NGVD29
Metadata
NOTE: River forecasts for this location take into account past precipitation and the precipitation amounts expected approximately 24 hours into the future from the forecast issuance time.

NOTE: Forecasts for the Illinois River near Henry are issued routinely year-round.

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Upstream Gauge - near La Salle Upstream Gauge Downstream Gauge Downstream Gauge - at Chillicothe
Flood Categories (in feet)
Major Flood Stage: 31
Moderate Flood Stage: 24
Flood Stage: 23
Action Stage: 22
Low Stage (in feet): -9999

Historic Crests
(1) 32.94 ft on 04/22/2013
(2) 32.67 ft on 03/22/1979
(3) 32.20 ft on 05/23/1943
(4) 32.02 ft on 03/07/1985
(5) 31.49 ft on 03/13/2009
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 22.57 ft on 01/18/2020 (P)
(2) 24.10 ft on 11/03/2019 (P)
(3) 24.58 ft on 10/01/2019
(4) 23.15 ft on 07/05/2019
(5) 23.16 ft on 06/23/2019
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
Currently none available.

For more information on your flood risk go to www.floodsmart.gov.
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Latitude/Longitude Disclaimer: The gauge location shown in the above map is the approximate location based on the latitude/longitude coordinates provided to the NWS by the gauge owner.
Flood Impacts & Photos Collapse
If you notice any errors in the below information, please contact our Webmaster
32.5 Illinois Route 18 in Marshall County is closed. Parts of Illinois Route 17 between Sparland and Lacon are closed.
32 Water begins flooding parts of Illinois Route 18 between Henry and Illinois Route 26. Parts of Illinois Route 17 begin to flood.
30.5 The Marina building, Waterworks Park, and grain loading facility in Henry are flooded.
29.6 A few homes begin to flood in Henry.
28.5 Hennepin levee overtopped.
28 Flooding begins to affect buildings east of Illinois Route 29 in Sparland.
23 Water begins to affect the marina in Henry along with minor flooding of land adjacent to the river.
Photos
(1) Looking Downstream (Stage: 15.45 ft)
(2) Looking Upstream (Stage: 15.45 ft)
(3) Gauge House
About This Location Collapse

Latitude: 41.107222° N, Longitude: 89.356111° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame		 Gauge Height Flood Stage Uses
NWS stage 0 ft 23 ft Interpreting hydrographs and NWS watch, warnings, and forecasts, and inundation maps
Vertical Datum Elevation
(gauge height = 0)		 Elevation
(gauge height = flood stage)		 Elevation information source
NAVD88 Not Available Not Available Survey grade GPS equipment, FEMA flood plain maps, newer USGS topographic maps
NGVD 29 425.88 ft 448.88 ft Older USGS topographic maps, NGVD29 benchmarks
MSL Not Available Not Available Older USGS topographic maps, MSL benchmarks
Other Not Available Not Available  

Current/Historical Observations:
Additional Information Collapse
USGS Streamflow Duration Hydrograph
How low could the river get?
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The National Weather Service prepares its forecasts and other services in collaboration with agencies like the US Geological Survey, US Bureau of Reclamation, US Army Corps of Engineers, Natural Resource Conservation Service, National Park Service, ALERT Users Group, Bureau of Indian Affairs, and many state and local emergency managers across the country. For details, please click here.
NWS Information
National Weather Service
Lincoln Weather Forecast Office
1362 State Route 10
Lincoln, IL 62656
(217) 732-3089
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