Flood Watch

Locations Affected

Chicago, IL ∙ Naperville, IL ∙ Aurora, IL ∙ Joliet, IL ∙ Elgin, IL ∙ Cicero, IL ∙ Waukegan, IL ∙ Palatine, IL ∙ Bolingbrook, IL ∙ Gary, IN

Full Alert Message

Flood Watch National Weather Service Chicago IL 244 PM CDT Thu Oct 1 2026 ...FLOOD WATCH REMAINS IN EFFECT UNTIL 10 PM CDT THIS EVENING... * WHAT...Flooding caused by excessive rainfall continues to be possible. * WHERE...Portions of Illinois, including the following areas, Central Cook, De Kalb, DuPage, Eastern Will, Grundy, Kane, Kendall, La Salle, Lake IL, Lee, Northern Cook, Northern Will, Southern Cook and Southern Will and northwest Indiana, including the following area, Lake IN. * WHEN...Until 10 PM CDT this evening. * IMPACTS...Creeks and streams may rise out of their banks. Flooding may occur in poor drainage and urban areas. * ADDITIONAL DETAILS... - Periods of soaking rain will continue through the afternoon and evening. Rainfall rates may reach 2 inches per hour in localized corridors. Such rainfall rates on saturated soils may lead to flooding particularly in low lying and flood prone areas. - http://www.weather.gov/safety/flood PRECAUTIONARY/PREPAREDNESS ACTIONS... 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.

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