Illinois, Indiana Severe Flood Watch | Effective 07/04/2026 07:39

Headline: 
Flood Watch issued July 4 at 9:39AM CDT until July 4 at 10:00PM CDT by NWS Chicago IL
Event: 
Flood Watch
Urgency: 
Future
Effective: 
July 4, 2026 - 7:39am
Expires: 
July 4, 2026 - 3:45pm
Description: 
* WHAT...Flooding caused by torrential downpours is possible. * WHERE...Portions of Illinois, including the following areas, Central Cook, De Kalb, DuPage, Eastern Will, Grundy, Kane, Kendall, La Salle, Lee, Northern Cook, Northern Will, Southern Cook and Southern Will and northwest Indiana, including the following area, Lake IN. * WHEN...From 1 PM CDT this afternoon through this evening. * IMPACTS...Flooding of streets, underpasses, basements, and vulnerable structures is possible. Storm drains and ditches may be clogged with debris, increasing the risk of flooding. This is especially true in the Chicago metropolitan area. * ADDITIONAL DETAILS... - Parts of the Flood Watch area have picked up 3 to 6 inches of rain in the past 48 hours. As a result, many rivers and creeks in the watch area are already at bankfull and soils are saturated. Additional torrential downpours today may lead to flooding, some of which could be significant particularly in the Chicago metropolitan area. - http://www.weather.gov/safety/flood
Instruction: 
A Flood Watch means flooding is possible, but not yet certain, based upon the latest forecasts. Persons with interests along area rivers, creeks, and other waterways should monitor the latest forecasts and be prepared to take action should flooding develop. Monitor the latest forecasts and be prepared to action should flooding develop.
Area Description: 
Lee; De Kalb; Kane; DuPage; La Salle; Kendall; Grundy; Northern Cook; Central Cook; Southern Cook; Northern Will; Southern Will; Eastern Will; Lake
Forcast Office: 
NWS Chicago IL