Illinois, Indiana Severe Flood Watch | Effective 06/17/2026 08:26

Headline: 
Flood Watch issued June 17 at 10:26AM CDT until June 17 at 9:00PM CDT by NWS Chicago IL
Event: 
Flood Watch
Urgency: 
Future
Effective: 
June 17, 2026 - 8:26am
Expires: 
June 17, 2026 - 3:00pm
Description: 
* WHAT...Flash flooding caused by excessive rainfall is possible today. * WHERE...Portions of Illinois, including the following areas, Central Cook, DuPage, Eastern Will, Ford, Grundy, Iroquois, Kane, Kankakee, Kendall, La Salle, Lake IL, Livingston, Northern Cook, Northern Will, Southern Cook and Southern Will and northwest Indiana, including the following areas, Benton, Jasper, Lake IN, Newton and Porter. * WHEN...Until 9 PM CDT /10 PM EDT/ this evening. * IMPACTS...Creeks and streams may rise out of their banks. Flooding may occur in poor drainage and urban areas. * ADDITIONAL DETAILS... - Showers and thunderstorms will continue today. Rain may be heavy at times, with the strongest storms capable of torrential rainfall which could drop up to 2 inches of rain in just an hour's time in the hardest hit areas. Soil moisture is already quite high and stream flows elevated, so heavy rainfall could quickly result in flash flooding of streams, creeks, low lying, and flood prone areas. - http://www.weather.gov/safety/flood
Instruction: 
A Flood Watch for flash flooding means rapid-onset flooding is possible, but not yet certain, based upon the latest forecasts. Flash flooding is a dangerous situation. Persons with interests along area rivers, creeks, and other waterways should monitor the latest forecasts and be prepared to take action should flooding develop.
Area Description: 
Lake; Kane; DuPage; La Salle; Kendall; Grundy; Kankakee; Livingston; Iroquois; Ford; Northern Cook; Central Cook; Southern Cook; Northern Will; Southern Will; Eastern Will; Lake; Porter; Newton; Jasper; Benton
Forcast Office: 
NWS Chicago IL