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Hydrograph River at a Glance Download
Illinois River near Henry Stage (ft)Highest Observation: 18.5 ft at 12:45PM Jul 21, 2021Highest Observation: 18.5 ft at 1:00PM Jul 21, 2021Highest Observation: 18.5 ft at 1:15PM Jul 21, 2021Highest Observation: 18.5 ft at 1:30PM Jul 21, 2021Observed: 18.49 ft at 1:45PM Jul 21, 2021Observed: 18.48 ft at 2:00PM Jul 21, 2021Observed: 18.47 ft at 2:15PM Jul 21, 2021Observed: 18.46 ft at 2:30PM Jul 21, 2021Observed: 18.46 ft at 2:45PM Jul 21, 2021Observed: 18.45 ft at 3:00PM Jul 21, 2021Observed: 18.44 ft at 3:15PM Jul 21, 2021Observed: 18.43 ft at 3:30PM Jul 21, 2021Observed: 18.43 ft at 3:45PM Jul 21, 2021Observed: 18.42 ft at 4:00PM Jul 21, 2021Observed: 18.41 ft at 4:15PM Jul 21, 2021Observed: 18.41 ft at 4:30PM Jul 21, 2021Observed: 18.39 ft at 4:45PM Jul 21, 2021Observed: 18.38 ft at 5:00PM Jul 21, 2021Observed: 18.38 ft at 5:15PM Jul 21, 2021Observed: 18.37 ft at 5:30PM Jul 21, 2021Observed: 18.36 ft at 5:45PM Jul 21, 2021Observed: 18.36 ft at 6:00PM Jul 21, 2021Observed: 18.36 ft at 6:15PM Jul 21, 2021Observed: 18.33 ft at 6:30PM Jul 21, 2021Observed: 18.35 ft at 6:45PM Jul 21, 2021Observed: 18.34 ft at 7:00PM Jul 21, 2021Observed: 18.33 ft at 7:45PM Jul 21, 2021Observed: 18.33 ft at 8:00PM Jul 21, 2021Observed: 18.3 ft at 8:15PM Jul 21, 2021Observed: 18.31 ft at 8:30PM Jul 21, 2021Observed: 18.31 ft at 8:45PM Jul 21, 2021Observed: 18.3 ft at 9:00PM Jul 21, 2021Observed: 18.3 ft at 9:15PM Jul 21, 2021Observed: 18.3 ft at 9:30PM Jul 21, 2021Observed: 18.3 ft at 9:45PM Jul 21, 2021Observed: 18.29 ft at 10:00PM Jul 21, 2021Observed: 18.29 ft at 10:15PM Jul 21, 2021Observed: 18.28 ft at 10:30PM Jul 21, 2021Observed: 18.28 ft at 10:45PM Jul 21, 2021Observed: 18.28 ft at 11:00PM Jul 21, 2021Observed: 18.28 ft at 11:15PM Jul 21, 2021Observed: 18.27 ft at 11:30PM Jul 21, 2021Observed: 18.29 ft at 11:45PM Jul 21, 2021Observed: 18.28 ft at 12:00AM Jul 22, 2021Observed: 18.27 ft at 12:15AM Jul 22, 2021Observed: 18.26 ft at 12:30AM Jul 22, 2021Observed: 18.26 ft at 12:45AM Jul 22, 2021Observed: 18.26 ft at 1:00AM Jul 22, 2021Observed: 18.26 ft at 1:15AM Jul 22, 2021Observed: 18.26 ft at 1:30AM Jul 22, 2021Observed: 18.25 ft at 1:45AM Jul 22, 2021Observed: 18.25 ft at 2:00AM Jul 22, 2021Observed: 18.25 ft at 2:15AM Jul 22, 2021Observed: 18.25 ft at 2:30AM Jul 22, 2021Observed: 18.25 ft at 2:45AM Jul 22, 2021Observed: 18.24 ft at 3:00AM Jul 22, 2021Observed: 18.24 ft at 3:15AM Jul 22, 2021Observed: 18.24 ft at 3:30AM Jul 22, 2021Observed: 18.23 ft at 3:45AM Jul 22, 2021Observed: 18.23 ft at 4:00AM Jul 22, 2021Observed: 18.23 ft at 4:15AM Jul 22, 2021Observed: 18.23 ft at 4:30AM Jul 22, 2021Observed: 18.23 ft at 4:45AM Jul 22, 2021Observed: 18.23 ft at 5:00AM Jul 22, 2021Observed: 18.22 ft at 5:15AM Jul 22, 2021Observed: 18.22 ft at 5:30AM Jul 22, 2021Observed: 18.21 ft at 5:45AM Jul 22, 2021Observed: 18.22 ft at 6:00AM Jul 22, 2021Observed: 18.21 ft at 6:15AM Jul 22, 2021Observed: 18.21 ft at 6:30AM Jul 22, 2021Observed: 18.2 ft at 6:45AM Jul 22, 2021Observed: 18.2 ft at 7:00AM Jul 22, 2021Observed: 18.21 ft at 7:30AM Jul 22, 2021Observed: 18.2 ft at 7:45AM Jul 22, 2021Observed: 18.19 ft at 8:00AM Jul 22, 2021Observed: 18.2 ft at 8:15AM Jul 22, 2021Observed: 18.19 ft at 8:30AM Jul 22, 2021Observed: 18.2 ft at 8:45AM Jul 22, 2021Observed: 18.14 ft at 11:00AM Jul 22, 2021Observed: 18.14 ft at 11:15AM Jul 22, 2021Observed: 18.13 ft at 11:30AM Jul 22, 2021Observed: 18.13 ft at 11:45AM Jul 22, 2021Observed: 18.13 ft at 12:00PM Jul 22, 2021Observed: 18.12 ft at 12:15PM Jul 22, 2021Observed: 18.12 ft at 12:30PM Jul 22, 2021Observed: 18.12 ft at 12:45PM Jul 22, 2021Observed: 18.13 ft at 1:00PM Jul 22, 2021Observed: 18.09 ft at 1:15PM Jul 22, 2021Observed: 18.1 ft at 1:30PM Jul 22, 2021Observed: 18.09 ft at 1:45PM Jul 22, 2021Observed: 18.08 ft at 2:00PM Jul 22, 2021Observed: 18.08 ft at 2:15PM Jul 22, 2021Observed: 18.07 ft at 2:30PM Jul 22, 2021Observed: 18.08 ft at 2:45PM Jul 22, 2021Observed: 18.08 ft at 3:00PM Jul 22, 2021Observed: 18.09 ft at 3:15PM Jul 22, 2021Observed: 18.01 ft at 3:30PM Jul 22, 2021Observed: 18 ft at 3:45PM Jul 22, 2021Observed: 18.05 ft at 4:00PM Jul 22, 2021Observed: 18.02 ft at 4:15PM Jul 22, 2021Observed: 18 ft at 4:30PM Jul 22, 2021Observed: 18 ft at 4:45PM Jul 22, 2021Observed: 18.01 ft at 5:00PM Jul 22, 2021Observed: 17.99 ft at 5:15PM Jul 22, 2021Observed: 17.99 ft at 5:30PM Jul 22, 2021Observed: 17.98 ft at 5:45PM Jul 22, 2021Observed: 17.97 ft at 6:00PM Jul 22, 2021Observed: 17.97 ft at 6:15PM Jul 22, 2021Observed: 17.97 ft at 6:30PM Jul 22, 2021Observed: 17.94 ft at 6:45PM Jul 22, 2021Observed: 17.93 ft at 7:00PM Jul 22, 2021Observed: 17.92 ft at 7:15PM Jul 22, 2021Observed: 17.92 ft at 7:30PM Jul 22, 2021Observed: 17.91 ft at 7:45PM Jul 22, 2021Observed: 17.91 ft at 8:00PM Jul 22, 2021Observed: 17.9 ft at 8:15PM Jul 22, 2021Observed: 17.9 ft at 8:30PM Jul 22, 2021Observed: 17.89 ft at 8:45PM Jul 22, 2021Observed: 17.9 ft at 9:00PM Jul 22, 2021Observed: 17.89 ft at 9:15PM Jul 22, 2021Observed: 17.88 ft at 9:30PM Jul 22, 2021Observed: 17.88 ft at 9:45PM Jul 22, 2021Observed: 17.87 ft at 10:00PM Jul 22, 2021Observed: 17.87 ft at 10:15PM Jul 22, 2021Observed: 17.87 ft at 10:30PM Jul 22, 2021Observed: 17.87 ft at 10:45PM Jul 22, 2021Observed: 17.86 ft at 11:00PM Jul 22, 2021Observed: 17.86 ft at 11:15PM Jul 22, 2021Observed: 17.86 ft at 11:30PM Jul 22, 2021Observed: 17.86 ft at 11:45PM Jul 22, 2021Observed: 17.85 ft at 12:00AM Jul 23, 2021Observed: 17.85 ft at 12:15AM Jul 23, 2021Observed: 17.84 ft at 12:30AM Jul 23, 2021Observed: 17.84 ft at 12:45AM Jul 23, 2021Observed: 17.84 ft at 1:00AM Jul 23, 2021Observed: 17.83 ft at 1:15AM Jul 23, 2021Observed: 17.82 ft at 1:30AM Jul 23, 2021Observed: 17.83 ft at 1:45AM Jul 23, 2021Observed: 17.81 ft at 2:00AM Jul 23, 2021Observed: 17.82 ft at 2:15AM Jul 23, 2021Observed: 17.8 ft at 2:30AM Jul 23, 2021Observed: 17.79 ft at 2:45AM Jul 23, 2021Observed: 17.79 ft at 3:00AM Jul 23, 2021Observed: 17.78 ft at 3:15AM Jul 23, 2021Observed: 17.78 ft at 3:30AM Jul 23, 2021Observed: 17.77 ft at 3:45AM Jul 23, 2021Observed: 17.77 ft at 4:00AM Jul 23, 2021Observed: 17.73 ft at 4:15AM Jul 23, 2021Observed: 17.77 ft at 4:30AM Jul 23, 2021Observed: 17.77 ft at 4:45AM Jul 23, 2021Observed: 17.74 ft at 5:00AM Jul 23, 2021Observed: 17.77 ft at 5:15AM Jul 23, 2021Observed: 17.74 ft at 5:30AM Jul 23, 2021Observed: 17.76 ft at 5:45AM Jul 23, 2021Observed: 17.76 ft at 6:00AM Jul 23, 2021Observed: 17.75 ft at 6:15AM Jul 23, 2021Observed: 17.76 ft at 6:30AM Jul 23, 2021Observed: 17.75 ft at 6:45AM Jul 23, 2021Observed: 17.76 ft at 7:00AM Jul 23, 2021Observed: 17.75 ft at 7:15AM Jul 23, 2021Observed: 17.75 ft at 7:30AM Jul 23, 2021Observed: 17.76 ft at 7:45AM Jul 23, 2021Observed: 17.76 ft at 8:00AM Jul 23, 2021Observed: 17.75 ft at 8:15AM Jul 23, 2021Observed: 17.77 ft at 8:30AM Jul 23, 2021Observed: 17.73 ft at 8:45AM Jul 23, 2021Observed: 17.74 ft at 9:00AM Jul 23, 2021Observed: 17.73 ft at 9:15AM Jul 23, 2021Observed: 17.73 ft at 9:30AM Jul 23, 2021Observed: 17.72 ft at 9:45AM Jul 23, 2021Observed: 17.74 ft at 10:00AM Jul 23, 2021Observed: 17.72 ft at 10:15AM Jul 23, 2021Observed: 17.72 ft at 10:30AM Jul 23, 2021Observed: 17.71 ft at 10:45AM Jul 23, 2021Observed: 17.71 ft at 11:00AM Jul 23, 2021Observed: 17.71 ft at 11:15AM Jul 23, 2021Observed: 17.7 ft at 11:30AM Jul 23, 2021Observed: 17.7 ft at 11:45AM Jul 23, 2021Observed: 17.69 ft at 12:00PM Jul 23, 2021Observed: 17.68 ft at 12:15PM Jul 23, 2021Observed: 17.68 ft at 12:30PM Jul 23, 2021Observed: 17.67 ft at 12:45PM Jul 23, 2021Observed: 17.67 ft at 1:00PM Jul 23, 2021Observed: 17.66 ft at 1:15PM Jul 23, 2021Observed: 17.66 ft at 1:30PM Jul 23, 2021Observed: 17.65 ft at 1:45PM Jul 23, 2021Observed: 17.65 ft at 2:00PM Jul 23, 2021Observed: 17.64 ft at 2:15PM Jul 23, 2021Observed: 17.63 ft at 2:30PM Jul 23, 2021Observed: 17.63 ft at 2:45PM Jul 23, 2021Observed: 17.62 ft at 3:00PM Jul 23, 2021Observed: 17.62 ft at 3:15PM Jul 23, 2021Observed: 17.62 ft at 3:30PM Jul 23, 2021Observed: 17.61 ft at 3:45PM Jul 23, 2021Observed: 17.6 ft at 4:00PM Jul 23, 2021Observed: 17.6 ft at 4:15PM Jul 23, 2021Observed: 17.6 ft at 4:30PM Jul 23, 2021Observed: 17.6 ft at 4:45PM Jul 23, 2021Observed: 17.59 ft at 5:00PM Jul 23, 2021Observed: 17.57 ft at 5:15PM Jul 23, 2021Observed: 17.57 ft at 5:30PM Jul 23, 2021Observed: 17.57 ft at 5:45PM Jul 23, 2021Observed: 17.56 ft at 6:00PM Jul 23, 2021Observed: 17.57 ft at 6:15PM Jul 23, 2021Observed: 17.57 ft at 6:30PM Jul 23, 2021Observed: 17.56 ft at 6:45PM Jul 23, 2021Observed: 17.58 ft at 7:00PM Jul 23, 2021Observed: 17.56 ft at 7:15PM Jul 23, 2021Observed: 17.56 ft at 7:30PM Jul 23, 2021Observed: 17.56 ft at 7:45PM Jul 23, 2021Observed: 17.54 ft at 8:00PM Jul 23, 2021Observed: 17.52 ft at 8:15PM Jul 23, 2021Observed: 17.52 ft at 8:30PM Jul 23, 2021Observed: 17.55 ft at 8:45PM Jul 23, 2021Observed: 17.53 ft at 9:00PM Jul 23, 2021Observed: 17.52 ft at 9:15PM Jul 23, 2021Observed: 17.52 ft at 9:30PM Jul 23, 2021Observed: 17.52 ft at 9:45PM Jul 23, 2021Observed: 17.52 ft at 10:00PM Jul 23, 2021Observed: 17.52 ft at 10:15PM Jul 23, 2021Observed: 17.52 ft at 10:30PM Jul 23, 2021Observed: 17.52 ft at 10:45PM Jul 23, 2021Observed: 17.52 ft at 11:00PM Jul 23, 2021Observed: 17.53 ft at 11:15PM Jul 23, 2021Observed: 17.52 ft at 11:30PM Jul 23, 2021Observed: 17.53 ft at 12:30AM Jul 24, 2021Observed: 17.48 ft at 12:45AM Jul 24, 2021Observed: 17.52 ft at 1:00AM Jul 24, 2021Observed: 17.48 ft at 1:15AM Jul 24, 2021Observed: 17.49 ft at 1:30AM Jul 24, 2021Observed: 17.48 ft at 2:00AM Jul 24, 2021Observed: 17.48 ft at 2:15AM Jul 24, 2021Observed: 17.47 ft at 2:30AM Jul 24, 2021Observed: 17.46 ft at 2:45AM Jul 24, 2021Observed: 17.46 ft at 3:00AM Jul 24, 2021Observed: 17.46 ft at 3:15AM Jul 24, 2021Observed: 17.46 ft at 3:30AM Jul 24, 2021Observed: 17.45 ft at 3:45AM Jul 24, 2021Observed: 17.44 ft at 4:00AM Jul 24, 2021Observed: 17.44 ft at 4:15AM Jul 24, 2021Observed: 17.44 ft at 4:30AM Jul 24, 2021Observed: 17.45 ft at 4:45AM Jul 24, 2021Observed: 17.45 ft at 5:00AM Jul 24, 2021Observed: 17.44 ft at 5:15AM Jul 24, 2021Observed: 17.43 ft at 5:30AM Jul 24, 2021Observed: 17.4 ft at 5:45AM Jul 24, 2021Observed: 17.4 ft at 6:00AM Jul 24, 2021Observed: 17.4 ft at 6:15AM Jul 24, 2021Observed: 17.4 ft at 6:30AM Jul 24, 2021Observed: 17.37 ft at 6:45AM Jul 24, 2021Observed: 17.37 ft at 7:00AM Jul 24, 2021Observed: 17.39 ft at 7:15AM Jul 24, 2021Observed: 17.36 ft at 7:30AM Jul 24, 2021Observed: 17.37 ft at 7:45AM Jul 24, 2021Observed: 17.37 ft at 8:00AM Jul 24, 2021Observed: 17.37 ft at 8:15AM Jul 24, 2021Observed: 17.36 ft at 8:30AM Jul 24, 2021Observed: 17.35 ft at 8:45AM Jul 24, 2021Observed: 17.35 ft at 9:00AM Jul 24, 2021Observed: 17.35 ft at 9:15AM Jul 24, 2021Observed: 17.31 ft at 9:30AM Jul 24, 2021Observed: 17.33 ft at 9:45AM Jul 24, 2021Observed: 17.38 ft at 10:00AM Jul 24, 2021Observed: 17.27 ft at 10:15AM Jul 24, 2021Observed: 17.33 ft at 10:30AM Jul 24, 2021Observed: 17.32 ft at 10:45AM Jul 24, 2021Observed: 17.31 ft at 11:00AM Jul 24, 2021Observed: 17.31 ft at 11:15AM Jul 24, 2021Observed: 17.33 ft at 11:30AM Jul 24, 2021Observed: 17.28 ft at 11:45AM Jul 24, 2021Observed: 17.29 ft at 12:00PM Jul 24, 2021Observed: 17.25 ft at 12:15PM Jul 24, 2021Observed: 17.28 ft at 12:30PM Jul 24, 2021Observed: 17.26 ft at 12:45PM Jul 24, 2021Observed: 17.26 ft at 1:00PM Jul 24, 2021Observed: 17.25 ft at 1:15PM Jul 24, 2021Observed: 17.22 ft at 1:30PM Jul 24, 2021Observed: 17.29 ft at 1:45PM Jul 24, 2021Observed: 17.27 ft at 2:00PM Jul 24, 2021Observed: 17.23 ft at 2:15PM Jul 24, 2021Observed: 17.23 ft at 2:30PM Jul 24, 2021Observed: 17.27 ft at 2:45PM Jul 24, 2021Observed: 17.18 ft at 3:00PM Jul 24, 2021Observed: 17.24 ft at 3:15PM Jul 24, 2021Observed: 17.19 ft at 3:30PM Jul 24, 2021Observed: 17.23 ft at 3:45PM Jul 24, 2021Observed: 17.17 ft at 4:00PM Jul 24, 2021Observed: 17.19 ft at 4:15PM Jul 24, 2021Observed: 17.21 ft at 4:30PM Jul 24, 2021Observed: 17.17 ft at 4:45PM Jul 24, 2021Observed: 17.17 ft at 5:00PM Jul 24, 2021Observed: 17.17 ft at 5:15PM Jul 24, 2021Observed: 17.24 ft at 5:30PM Jul 24, 2021Observed: 17.22 ft at 5:45PM Jul 24, 2021Observed: 17.23 ft at 6:00PM Jul 24, 2021Observed: 17.14 ft at 6:15PM Jul 24, 2021Observed: 17.2 ft at 6:30PM Jul 24, 2021Observed: 17.19 ft at 6:45PM Jul 24, 2021Observed: 17.12 ft at 7:00PM Jul 24, 2021Observed: 17.13 ft at 7:15PM Jul 24, 2021Observed: 17.14 ft at 7:30PM Jul 24, 2021Observed: 17.13 ft at 7:45PM Jul 24, 2021Observed: 17.12 ft at 8:00PM Jul 24, 2021Observed: 17.12 ft at 8:15PM Jul 24, 2021Observed: 17.09 ft at 8:30PM Jul 24, 2021Observed: 17.1 ft at 8:45PM Jul 24, 2021Observed: 17.07 ft at 9:00PM Jul 24, 2021Observed: 17.06 ft at 9:15PM Jul 24, 2021Observed: 17.06 ft at 9:30PM Jul 24, 2021Observed: 17.06 ft at 9:45PM Jul 24, 2021Observed: 17.04 ft at 10:00PM Jul 24, 2021Observed: 17.03 ft at 10:15PM Jul 24, 2021Observed: 17.03 ft at 10:30PM Jul 24, 2021Observed: 17.02 ft at 10:45PM Jul 24, 2021Observed: 17.02 ft at 11:00PM Jul 24, 2021Observed: 17.03 ft at 11:15PM Jul 24, 2021Observed: 16.99 ft at 11:45PM Jul 24, 2021Observed: 16.97 ft at 12:00AM Jul 25, 2021Observed: 16.98 ft at 12:15AM Jul 25, 2021Observed: 16.97 ft at 12:30AM Jul 25, 2021Observed: 16.95 ft at 12:45AM Jul 25, 2021Observed: 16.96 ft at 1:00AM Jul 25, 2021Observed: 16.96 ft at 1:15AM Jul 25, 2021Observed: 16.95 ft at 1:30AM Jul 25, 2021Observed: 16.94 ft at 1:45AM Jul 25, 2021Observed: 16.93 ft at 2:00AM Jul 25, 2021Observed: 16.93 ft at 2:15AM Jul 25, 2021Observed: 16.92 ft at 2:30AM Jul 25, 2021Observed: 16.92 ft at 2:45AM Jul 25, 2021Observed: 16.91 ft at 3:00AM Jul 25, 2021Observed: 16.91 ft at 3:15AM Jul 25, 2021Observed: 16.89 ft at 3:30AM Jul 25, 2021Observed: 16.9 ft at 3:45AM Jul 25, 2021Observed: 16.88 ft at 4:00AM Jul 25, 2021Observed: 16.88 ft at 4:15AM Jul 25, 2021Observed: 16.87 ft at 4:30AM Jul 25, 2021Observed: 16.87 ft at 4:45AM Jul 25, 2021Observed: 16.85 ft at 5:00AM Jul 25, 2021Observed: 16.84 ft at 5:15AM Jul 25, 2021Observed: 16.84 ft at 5:30AM Jul 25, 2021Observed: 16.84 ft at 5:45AM Jul 25, 2021Observed: 16.82 ft at 6:00AM Jul 25, 2021Observed: 16.83 ft at 6:15AM Jul 25, 2021Observed: 16.83 ft at 6:30AM Jul 25, 2021Observed: 16.82 ft at 6:45AM Jul 25, 2021Observed: 16.83 ft at 7:00AM Jul 25, 2021Observed: 16.82 ft at 7:15AM Jul 25, 2021Observed: 16.81 ft at 7:30AM Jul 25, 2021Observed: 16.8 ft at 7:45AM Jul 25, 2021Observed: 16.8 ft at 8:00AM Jul 25, 2021Observed: 16.8 ft at 8:15AM Jul 25, 2021Observed: 16.79 ft at 8:30AM Jul 25, 2021Observed: 16.78 ft at 8:45AM Jul 25, 2021Observed: 16.78 ft at 9:00AM Jul 25, 2021Observed: 16.78 ft at 9:15AM Jul 25, 2021Observed: 16.77 ft at 9:30AM Jul 25, 2021Observed: 16.77 ft at 9:45AM Jul 25, 2021Observed: 16.76 ft at 10:00AM Jul 25, 2021Observed: 16.77 ft at 10:15AM Jul 25, 2021Observed: 16.75 ft at 10:30AM Jul 25, 2021Observed: 16.75 ft at 10:45AM Jul 25, 2021Observed: 16.74 ft at 11:00AM Jul 25, 2021Observed: 16.74 ft at 11:15AM Jul 25, 2021Observed: 16.76 ft at 11:30AM Jul 25, 2021Observed: 16.73 ft at 11:45AM Jul 25, 2021Observed: 16.73 ft at 12:00PM Jul 25, 2021Observed: 16.71 ft at 12:15PM Jul 25, 2021Observed: 16.75 ft at 12:30PM Jul 25, 2021Observed: 16.74 ft at 12:45PM Jul 25, 2021Observed: 16.7 ft at 1:00PM Jul 25, 2021Observed: 16.71 ft at 1:15PM Jul 25, 2021Observed: 16.7 ft at 1:30PM Jul 25, 2021Observed: 16.7 ft at 1:45PM Jul 25, 2021Observed: 16.69 ft at 2:00PM Jul 25, 2021Observed: 16.68 ft at 2:15PM Jul 25, 2021Observed: 16.69 ft at 2:30PM Jul 25, 2021Observed: 16.67 ft at 2:45PM Jul 25, 2021Observed: 16.67 ft at 3:00PM Jul 25, 2021Observed: 16.66 ft at 3:15PM Jul 25, 2021Observed: 16.66 ft at 3:30PM Jul 25, 2021Observed: 16.65 ft at 3:45PM Jul 25, 2021Observed: 16.64 ft at 4:00PM Jul 25, 2021Observed: 16.6 ft at 4:15PM Jul 25, 2021Observed: 16.64 ft at 4:30PM Jul 25, 2021Observed: 16.6 ft at 4:45PM Jul 25, 2021Observed: 16.59 ft at 5:00PM Jul 25, 2021Observed: 16.65 ft at 5:15PM Jul 25, 2021Observed: 16.58 ft at 5:30PM Jul 25, 2021Observed: 16.59 ft at 5:45PM Jul 25, 2021Observed: 16.61 ft at 6:00PM Jul 25, 2021Observed: 16.57 ft at 6:15PM Jul 25, 2021Observed: 16.61 ft at 6:30PM Jul 25, 2021Observed: 16.58 ft at 6:45PM Jul 25, 2021Observed: 16.59 ft at 7:00PM Jul 25, 2021Observed: 16.57 ft at 7:15PM Jul 25, 2021Observed: 16.56 ft at 7:30PM Jul 25, 2021Observed: 16.55 ft at 7:45PM Jul 25, 2021Observed: 16.56 ft at 8:00PM Jul 25, 2021Observed: 16.53 ft at 8:15PM Jul 25, 2021Observed: 16.53 ft at 8:30PM Jul 25, 2021Observed: 16.53 ft at 8:45PM Jul 25, 2021Observed: 16.53 ft at 9:00PM Jul 25, 2021Observed: 16.53 ft at 9:15PM Jul 25, 2021Observed: 16.53 ft at 9:30PM Jul 25, 2021Observed: 16.52 ft at 9:45PM Jul 25, 2021Observed: 16.52 ft at 10:00PM Jul 25, 2021Observed: 16.52 ft at 10:15PM Jul 25, 2021Observed: 16.51 ft at 10:30PM Jul 25, 2021Observed: 16.51 ft at 10:45PM Jul 25, 2021Observed: 16.51 ft at 11:00PM Jul 25, 2021Observed: 16.53 ft at 11:15PM Jul 25, 2021Observed: 16.5 ft at 11:30PM Jul 25, 2021Observed: 16.52 ft at 11:45PM Jul 25, 2021Observed: 16.51 ft at 12:00AM Jul 26, 2021Observed: 16.52 ft at 12:15AM Jul 26, 2021Observed: 16.52 ft at 12:30AM Jul 26, 2021Observed: 16.52 ft at 12:45AM Jul 26, 2021Observed: 16.52 ft at 1:00AM Jul 26, 2021Observed: 16.52 ft at 1:15AM Jul 26, 2021Observed: 16.53 ft at 1:30AM Jul 26, 2021Observed: 16.55 ft at 1:45AM Jul 26, 2021Observed: 16.53 ft at 2:00AM Jul 26, 2021Observed: 16.51 ft at 2:15AM Jul 26, 2021Observed: 16.53 ft at 2:30AM Jul 26, 2021Observed: 16.52 ft at 2:45AM Jul 26, 2021Observed: 16.5 ft at 3:00AM Jul 26, 2021Observed: 16.51 ft at 3:15AM Jul 26, 2021Observed: 16.51 ft at 3:30AM Jul 26, 2021Observed: 16.52 ft at 3:45AM Jul 26, 2021Observed: 16.5 ft at 4:00AM Jul 26, 2021Observed: 16.5 ft at 4:15AM Jul 26, 2021Observed: 16.48 ft at 4:30AM Jul 26, 2021Observed: 16.49 ft at 4:45AM Jul 26, 2021Observed: 16.48 ft at 5:00AM Jul 26, 2021Observed: 16.48 ft at 5:15AM Jul 26, 2021Observed: 16.49 ft at 5:30AM Jul 26, 2021Observed: 16.47 ft at 5:45AM Jul 26, 2021Observed: 16.46 ft at 6:00AM Jul 26, 2021Observed: 16.47 ft at 6:15AM Jul 26, 2021Observed: 16.51 ft at 6:30AM Jul 26, 2021Observed: 16.47 ft at 6:45AM Jul 26, 2021Observed: 16.44 ft at 7:00AM Jul 26, 2021Observed: 16.45 ft at 7:15AM Jul 26, 2021Observed: 16.45 ft at 7:30AM Jul 26, 2021Observed: 16.43 ft at 7:45AM Jul 26, 2021Observed: 16.42 ft at 8:00AM Jul 26, 2021Observed: 16.42 ft at 8:15AM Jul 26, 2021Observed: 16.41 ft at 8:30AM Jul 26, 2021Observed: 16.39 ft at 8:45AM Jul 26, 2021Observed: 16.34 ft at 9:00AM Jul 26, 2021Observed: 16.4 ft at 9:15AM Jul 26, 2021Observed: 16.38 ft at 9:30AM Jul 26, 2021Observed: 16.38 ft at 9:45AM Jul 26, 2021Observed: 16.38 ft at 10:00AM Jul 26, 2021Observed: 16.38 ft at 10:15AM Jul 26, 2021Observed: 16.38 ft at 10:30AM Jul 26, 2021Observed: 16.36 ft at 10:45AM Jul 26, 2021Observed: 16.34 ft at 12:00PM Jul 26, 2021Observed: 16.34 ft at 12:15PM Jul 26, 2021Observed: 16.33 ft at 12:30PM Jul 26, 2021Observed: 16.32 ft at 12:45PM Jul 26, 2021Observed: 16.32 ft at 1:00PM Jul 26, 2021Observed: 16.32 ft at 1:15PM Jul 26, 2021Observed: 16.33 ft at 1:30PM Jul 26, 2021Observed: 16.32 ft at 1:45PM Jul 26, 2021Observed: 16.29 ft at 2:00PM Jul 26, 2021Observed: 16.3 ft at 2:15PM Jul 26, 2021Observed: 16.29 ft at 2:30PM Jul 26, 2021Observed: 16.29 ft at 2:45PM Jul 26, 2021Observed: 16.27 ft at 3:00PM Jul 26, 2021Observed: 16.28 ft at 3:15PM Jul 26, 2021Observed: 16.27 ft at 3:30PM Jul 26, 2021Observed: 16.27 ft at 3:45PM Jul 26, 2021Observed: 16.26 ft at 4:00PM Jul 26, 2021Observed: 16.25 ft at 4:15PM Jul 26, 2021Observed: 16.25 ft at 4:30PM Jul 26, 2021Observed: 16.25 ft at 4:45PM Jul 26, 2021Observed: 16.23 ft at 5:00PM Jul 26, 2021Observed: 16.25 ft at 5:15PM Jul 26, 2021Observed: 16.23 ft at 5:30PM Jul 26, 2021Observed: 16.23 ft at 5:45PM Jul 26, 2021Observed: 16.23 ft at 6:00PM Jul 26, 2021Observed: 16.23 ft at 6:15PM Jul 26, 2021Observed: 16.22 ft at 6:30PM Jul 26, 2021Observed: 16.22 ft at 6:45PM Jul 26, 2021Observed: 16.21 ft at 7:00PM Jul 26, 2021Observed: 16.21 ft at 7:15PM Jul 26, 2021Observed: 16.2 ft at 7:30PM Jul 26, 2021Observed: 16.2 ft at 7:45PM Jul 26, 2021Observed: 16.19 ft at 8:00PM Jul 26, 2021Observed: 16.18 ft at 8:15PM Jul 26, 2021Observed: 16.18 ft at 8:30PM Jul 26, 2021Observed: 16.18 ft at 8:45PM Jul 26, 2021Observed: 16.16 ft at 9:00PM Jul 26, 2021Observed: 16.17 ft at 9:15PM Jul 26, 2021Observed: 16.13 ft at 9:30PM Jul 26, 2021Observed: 16.15 ft at 9:45PM Jul 26, 2021Observed: 16.15 ft at 10:00PM Jul 26, 2021Observed: 16.15 ft at 10:15PM Jul 26, 2021Observed: 16.19 ft at 10:30PM Jul 26, 2021Observed: 16.11 ft at 11:00PM Jul 26, 2021Observed: 16.12 ft at 11:15PM Jul 26, 2021Observed: 16.12 ft at 11:30PM Jul 26, 2021Observed: 16.11 ft at 11:45PM Jul 26, 2021Observed: 16.11 ft at 12:00AM Jul 27, 2021Observed: 16.11 ft at 12:15AM Jul 27, 2021Observed: 16.13 ft at 12:30AM Jul 27, 2021Observed: 16.12 ft at 12:45AM Jul 27, 2021Observed: 16.11 ft at 1:00AM Jul 27, 2021Observed: 16.1 ft at 1:15AM Jul 27, 2021Observed: 16.1 ft at 1:30AM Jul 27, 2021Observed: 16.1 ft at 1:45AM Jul 27, 2021Observed: 16.1 ft at 2:00AM Jul 27, 2021Observed: 16.09 ft at 2:15AM Jul 27, 2021Observed: 16.09 ft at 2:30AM Jul 27, 2021Observed: 16.08 ft at 2:45AM Jul 27, 2021Observed: 16.08 ft at 3:00AM Jul 27, 2021Observed: 16.08 ft at 3:15AM Jul 27, 2021Observed: 16.08 ft at 3:30AM Jul 27, 2021Observed: 16.07 ft at 3:45AM Jul 27, 2021Observed: 16.06 ft at 4:00AM Jul 27, 2021Observed: 16.06 ft at 4:15AM Jul 27, 2021Observed: 16.05 ft at 4:30AM Jul 27, 2021Observed: 16.06 ft at 4:45AM Jul 27, 2021Observed: 16.07 ft at 5:00AM Jul 27, 2021Observed: 16.05 ft at 5:15AM Jul 27, 2021Observed: 16.04 ft at 5:30AM Jul 27, 2021Observed: 16.05 ft at 5:45AM Jul 27, 2021Observed: 16.05 ft at 6:00AM Jul 27, 2021Observed: 16.03 ft at 6:15AM Jul 27, 2021Observed: 16.04 ft at 6:30AM Jul 27, 2021Observed: 16.04 ft at 6:45AM Jul 27, 2021Observed: 16.04 ft at 7:00AM Jul 27, 2021Observed: 16.03 ft at 7:15AM Jul 27, 2021Observed: 16.03 ft at 7:30AM Jul 27, 2021Observed: 16.02 ft at 7:45AM Jul 27, 2021Observed: 16.02 ft at 8:00AM Jul 27, 2021Observed: 16.02 ft at 8:15AM Jul 27, 2021Observed: 16.01 ft at 8:30AM Jul 27, 2021Observed: 16.01 ft at 8:45AM Jul 27, 2021Observed: 16.01 ft at 9:00AM Jul 27, 2021Observed: 16.01 ft at 9:15AM Jul 27, 2021Observed: 16 ft at 9:30AM Jul 27, 2021Observed: 16.01 ft at 9:45AM Jul 27, 2021Observed: 16 ft at 10:00AM Jul 27, 2021Observed: 16.02 ft at 10:15AM Jul 27, 2021Observed: 15.99 ft at 10:45AM Jul 27, 2021Observed: 15.97 ft at 11:00AM Jul 27, 2021Observed: 15.98 ft at 11:15AM Jul 27, 2021Observed: 15.96 ft at 11:30AM Jul 27, 2021Observed: 15.99 ft at 11:45AM Jul 27, 2021Observed: 16.02 ft at 12:00PM Jul 27, 2021Observed: 15.99 ft at 12:15PM Jul 27, 2021Observed: 15.97 ft at 12:30PM Jul 27, 2021Observed: 15.98 ft at 12:45PM Jul 27, 2021Observed: 15.96 ft at 1:00PM Jul 27, 2021Observed: 15.96 ft at 1:15PM Jul 27, 2021Observed: 15.94 ft at 1:30PM Jul 27, 2021Observed: 15.94 ft at 1:45PM Jul 27, 2021Observed: 15.93 ft at 2:00PM Jul 27, 2021Observed: 15.93 ft at 2:15PM Jul 27, 2021Observed: 15.92 ft at 2:30PM Jul 27, 2021Observed: 15.93 ft at 2:45PM Jul 27, 2021Observed: 15.92 ft at 3:00PM Jul 27, 2021Observed: 15.92 ft at 3:15PM Jul 27, 2021Observed: 15.93 ft at 3:30PM Jul 27, 2021Observed: 15.9 ft at 3:45PM Jul 27, 2021Observed: 15.99 ft at 4:00PM Jul 27, 2021Observed: 15.89 ft at 4:15PM Jul 27, 2021Observed: 15.92 ft at 4:30PM Jul 27, 2021Observed: 15.91 ft at 4:45PM Jul 27, 2021Observed: 15.91 ft at 5:00PM Jul 27, 2021Observed: 15.9 ft at 5:15PM Jul 27, 2021Observed: 15.92 ft at 5:30PM Jul 27, 2021Observed: 15.92 ft at 5:45PM Jul 27, 2021Observed: 15.89 ft at 6:00PM Jul 27, 2021Observed: 15.88 ft at 6:15PM Jul 27, 2021Observed: 15.93 ft at 6:30PM Jul 27, 2021Observed: 15.95 ft at 6:45PM Jul 27, 2021Observed: 15.91 ft at 7:00PM Jul 27, 2021Observed: 15.86 ft at 7:15PM Jul 27, 2021Observed: 15.91 ft at 7:30PM Jul 27, 2021Observed: 15.92 ft at 7:45PM Jul 27, 2021Observed: 15.9 ft at 8:00PM Jul 27, 2021Observed: 15.88 ft at 8:15PM Jul 27, 2021Observed: 15.83 ft at 8:30PM Jul 27, 2021Observed: 15.71 ft at 8:45PM Jul 27, 2021Observed: 15.86 ft at 9:00PM Jul 27, 2021Observed: 15.84 ft at 9:15PM Jul 27, 2021Observed: 15.86 ft at 9:30PM Jul 27, 2021Observed: 15.85 ft at 9:45PM Jul 27, 2021Observed: 15.85 ft at 10:00PM Jul 27, 2021Observed: 15.85 ft at 10:15PM Jul 27, 2021Observed: 15.85 ft at 10:30PM Jul 27, 2021Observed: 15.85 ft at 10:45PM Jul 27, 2021Observed: 15.84 ft at 11:00PM Jul 27, 2021Observed: 15.84 ft at 11:15PM Jul 27, 2021Observed: 15.84 ft at 11:30PM Jul 27, 2021Observed: 15.84 ft at 11:45PM Jul 27, 2021Observed: 15.84 ft at 12:00AM Jul 28, 2021Observed: 15.84 ft at 12:15AM Jul 28, 2021Observed: 15.84 ft at 12:30AM Jul 28, 2021Observed: 15.84 ft at 12:45AM Jul 28, 2021Observed: 15.83 ft at 1:00AM Jul 28, 2021Observed: 15.83 ft at 1:15AM Jul 28, 2021Observed: 15.83 ft at 1:30AM Jul 28, 2021Observed: 15.83 ft at 1:45AM Jul 28, 2021Observed: 15.83 ft at 2:00AM Jul 28, 2021Observed: 15.82 ft at 2:15AM Jul 28, 2021Observed: 15.82 ft at 2:30AM Jul 28, 2021Observed: 15.81 ft at 2:45AM Jul 28, 2021Observed: 15.81 ft at 3:00AM Jul 28, 2021Observed: 15.82 ft at 3:15AM Jul 28, 2021Observed: 15.82 ft at 3:30AM Jul 28, 2021Observed: 15.82 ft at 3:45AM Jul 28, 2021Observed: 15.81 ft at 4:00AM Jul 28, 2021Observed: 15.81 ft at 4:15AM Jul 28, 2021Observed: 15.83 ft at 4:30AM Jul 28, 2021Observed: 15.81 ft at 4:45AM Jul 28, 2021Observed: 15.82 ft at 5:00AM Jul 28, 2021Observed: 15.81 ft at 5:15AM Jul 28, 2021Observed: 15.76 ft at 5:30AM Jul 28, 2021Observed: 15.81 ft at 5:45AM Jul 28, 2021Observed: 15.79 ft at 6:00AM Jul 28, 2021Observed: 15.76 ft at 6:15AM Jul 28, 2021Observed: 15.77 ft at 6:30AM Jul 28, 2021Observed: 15.77 ft at 6:45AM Jul 28, 2021Observed: 15.76 ft at 7:00AM Jul 28, 2021Observed: 15.76 ft at 7:15AM Jul 28, 2021Observed: 15.78 ft at 7:30AM Jul 28, 2021Observed: 15.77 ft at 7:45AM Jul 28, 2021Observed: 15.72 ft at 8:00AM Jul 28, 2021Observed: 15.76 ft at 8:15AM Jul 28, 2021Observed: 15.75 ft at 8:30AM Jul 28, 2021Observed: 15.71 ft at 8:45AM Jul 28, 2021Observed: 15.72 ft at 9:00AM Jul 28, 2021Observed: 15.69 ft at 9:15AM Jul 28, 2021Observed: 15.7 ft at 9:30AM Jul 28, 2021Observed: 15.71 ft at 9:45AM Jul 28, 2021Observed: 15.7 ft at 10:00AM Jul 28, 2021Observed: 15.65 ft at 10:15AM Jul 28, 2021Observed: 15.7 ft at 10:30AM Jul 28, 2021Observed: 15.7 ft at 10:45AM Jul 28, 2021Observed: 15.68 ft at 11:00AM Jul 28, 2021Observed: 15.68 ft at 11:15AM Jul 28, 2021Observed: 15.68 ft at 11:30AM Jul 28, 2021Observed: 15.67 ft at 11:45AM Jul 28, 2021Forecast: 15.7 ft 1:00PM Jul 28, 2021Highest Forecast: 15.8 ft 7:00PM Jul 28, 2021Highest Forecast: 15.8 ft 1:00AM Jul 29, 2021Highest Forecast: 15.8 ft 7:00AM Jul 29, 2021Highest Forecast: 15.8 ft 1:00PM Jul 29, 2021Highest Forecast: 15.8 ft 7:00PM Jul 29, 2021Highest Forecast: 15.8 ft 1:00AM Jul 30, 2021Highest Forecast: 15.8 ft 7:00AM Jul 30, 2021Highest Forecast: 15.8 ft 1:00PM Jul 30, 2021Highest Forecast: 15.8 ft 7:00PM Jul 30, 2021Highest Forecast: 15.8 ft 1:00AM Jul 31, 2021Highest Forecast: 15.8 ft 7:00AM Jul 31, 2021Forecast: 15.7 ft 1:00PM Jul 31, 2021Forecast: 15.6 ft 7:00PM Jul 31, 2021Forecast: 15.5 ft 1:00AM Aug 01, 2021Forecast: 15.4 ft 7:00AM Aug 01, 2021Forecast: 15.3 ft 1:00PM Aug 01, 2021Forecast: 15.2 ft 7:00PM Aug 01, 2021Forecast: 15.1 ft 1:00AM Aug 02, 2021Forecast: 15 ft 7:00AM Aug 02, 2021Forecast: 15 ft 1:00PM Aug 02, 2021Forecast: 15 ft 7:00PM Aug 02, 2021Forecast: 14.9 ft 1:00AM Aug 03, 2021Forecast: 14.9 ft 7:00AM Aug 03, 2021Forecast: 14.8 ft 1:00PM Aug 03, 2021Forecast: 14.8 ft 7:00PM Aug 03, 2021Forecast: 14.8 ft 1:00AM Aug 04, 2021Forecast: 14.7 ft 7:00AM Aug 04, 2021USGS--Water Resources of the United StatesHNYI2(plotting HGIRG) Graph Created (12:38PM Jul 28, 2021)ObservedForecast (issued 9:55AM Jul 28)Latest observed value: 15.67 ft at 11:45 AM CDT 28-Jul-2021. 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) 31.62 ft on 05/21/2020 (P)
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 31.62 ft on 05/21/2020 (P)
(2) 25.25 ft on 05/03/2020 (P)
(3) 22.57 ft on 01/18/2020 (P)
(4) 24.10 ft on 11/03/2019 (P)
(5) 24.58 ft on 10/01/2019
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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Hydrologic Resources Additional Resources
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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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