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River Flood Warning
Issued: 4:14 PM Aug. 18, 2026 – National Weather Service
...FLOOD WARNING REMAINS IN EFFECT UNTIL LATE TONIGHT... * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Illinois River from Starved Rock Lock and Dam downstream to confluence with Big Bureau Creek, including the La Salle gauge. * WHEN...Until late tonight. * IMPACTS...At 20.0 feet, Agricultural areas in La Salle, Spring Valley, and Peru are inundated. * ADDITIONAL DETAILS... - At 10:45 AM CDT Tuesday the stage was 20.4 feet. - Forecast...The river is expected to fall below flood stage late this evening and continue falling through the end of the week. - Flood stage is 20.0 feet. - http://www.weather.gov/safety/flood &&
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