Illinois Severe Flood Warning | Effective 07/04/2026 15:21

Headline: 
Flood Warning issued July 4 at 5:21PM CDT until July 7 at 1:00AM CDT by NWS Chicago IL
Event: 
Flood Warning
Urgency: 
Expected
Effective: 
July 4, 2026 - 3:21pm
Expires: 
July 5, 2026 - 9:30am
Description: 
...The National Weather Service in Chicago IL has issued a Flood Warning for the following rivers in Illinois... East Branch Du Page River at Bolingbrook affecting Will and DuPage Counties. * WHAT...At least minor flooding is forecasted to occur. * WHERE...East Branch Du Page River from Maple Avenue in Lisle downstream to confluence with West Branch DuPage River, including the Bolingbrook gauge. * WHEN...From this afternoon to early Tuesday morning. * IMPACTS...At 20.0 feet, DuPage River Greenway Trail is threatened east of the river near Royce Road in Bolingbrook. Trails threatened at Green Valley Forest Preserve near Woodridge. * ADDITIONAL DETAILS... - At 4:40 PM CDT Saturday the stage was 19.6 feet and quickly rising. - Forecast...The river is expected to continue rising into at least Minor flood stage this evening. - Flood stage is 20.0 feet. - http://www.weather.gov/safety/flood
Instruction: 
A Flood Warning means water levels above flood stage are imminent or may already be occurring. Persons along rivers and streams in the warned area should take immediate precautions to protect life and property. These forecasts are based on observed precipitation as well as forecast precipitation 24 hours into the future. Changes to the rainfall forecast, or any additional rainfall after 24 hours, may cause changes to these river forecasts. Additional information is available at www.weather.gov. The next statement will be issued by Sunday morning.
Area Description: 
DuPage, IL; Will, IL
Forcast Office: 
NWS Chicago IL