Flood Watch

Locations Affected

Chicago, IL ∙ Naperville, IL ∙ Aurora, IL ∙ Joliet, IL ∙ Elgin, IL ∙ Cicero, IL ∙ Arlington Heights, IL ∙ Bolingbrook, IL ∙ Hammond, IN ∙ Palatine, IL

Full Alert Message

URGENT - IMMEDIATE BROADCAST REQUESTED Flood Watch National Weather Service Chicago IL 1149 AM CDT Fri Jul 25 2025 ...FLOOD WATCH IN EFFECT UNTIL 6 PM CDT THIS EVENING... * WHAT...Flash flooding caused by excessive rainfall is possible. * WHERE...Portions of northeast Illinois, including the following areas, Central Cook, DuPage, Eastern Will, Grundy, Kane, Kendall, Northern Cook, Northern Will, Southern Cook and Southern Will and northwest Indiana, including the following area, Lake IN. * WHEN...Until 6 PM CDT this evening. * IMPACTS...Creeks and streams may rise out of their banks. Underpasses may be flooded. Roads and streets may be flooded. Extensive street flooding possible. * ADDITIONAL DETAILS... - Slow moving showers and thunderstorms with torrential rainfall will produce locally very heavy rainfall today. Rainfall amounts of 2 to 5 inches or more will be possible on a localized basis. This will lead to instances of flash flooding into this afternoon. - http://www.weather.gov/safety/flood PRECAUTIONARY/PREPAREDNESS ACTIONS... 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.

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