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This probabilistic forecast is issued by the North Central River Forecast Center.
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About this graph
Forecasts for the Illinois River at Peoria are issued routinely year-round.
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Zoom Level:14
Flood Categories (in feet)
Major Flood Stage: 28
Moderate Flood Stage: 22
Flood Stage: 18
Action Stage: 17
Low Stage (in feet): -9999

Historic Crests
(1) 29.35 ft on 04/23/2013
(2) 28.80 ft on 05/23/1943
(3) 28.70 ft on 03/23/1979
(4) 28.40 ft on 03/07/1985
(5) 28.00 ft on 05/07/2019
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 21.66 ft on 02/02/2024 (P)
(2) 17.15 ft on 04/07/2023
(3) 17.48 ft on 03/10/2023
(4) 17.16 ft on 05/11/2022
(5) 19.21 ft on 04/09/2022
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
Currently none available.
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Gauge LocationGauge Map Marker
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
35.2 Komatsu levee overtops.
30.6 The Peoria Sanitary District Levee overtopped at 30.6 feet.
30 Water overtops the levee at the Pekin sewage treatment plant.
29 Water overtops Pekin and LaMarsh levee at the railroad crossing. Constitution Avenue becomes inundated.
28.7 Four blocks of Water Street in Peoria are inundated.
28.5 Water reaches the lowest door sill elevations in the 300 block of SW Water Street in Peoria.
28 Entire length of Lake Street in Spring Bay is inundated.
27.5 Water begins to flood the 100 block of NE Water Street in Peoria.
27 Water begins to flood the 300 block of SW Water Street in Peoria.
26.5 Several houses in Rome and Chillicothe become isolated. Homes on Sunset Drive between North Avenue and Collins Avenue...4 miles SSW of Bay View Gardens...are surrounded by water. In Spring Bay...North Lake Street from Missouri Street to Zimmerman Road is flooded.
26.4 Water reaches the lowest door sill elevation of Peoria's historic River Station building on Water Street.
26 Water inundates road by the railroad track north of the Pekin treatment plant. Liberty Park in Peoria is flooded.
25.6 Water crosses South Darst Street in Peoria.
25.1 A portion of Layne Crossing and North Street are closed in the Rome and Chillicothe areas. Poplar Lane floods in Peoria Heights.
25 Damage begins at Pekin sewage treatment plant. Minor property damage in Peoria by the river.
24.5 A portion of River Beach Drive and Second Street become flooded in the Chillicothe and Rome areas.
24 Water begins to cover some streets in East Peoria.
23 Some secondary roads affected in Peoria county and damage begins to buildings in Rome.
22.7 Flooding begins to low lying areas in Peoria Heights and Peoria's Riverfront Park.
18 Some flooding begins to bottomland not protected by levees.
17.5 Water approaches Spring Bay Park.
16.7 Pumping begins in East Peoria near the train yard and Wesley Slough.
(1) Looking Downstream
(2) Looking Upstream

Other Real-time and/or Archive Data Sources:

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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
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Lincoln Weather Forecast Office
1362 State Route 10
Lincoln, IL 62656
(217) 732-3089
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Page last modified: 2-Nov-2020 7:29 PM
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