Active Weather Alerts
Flood Advisory
Issued: 7:12 PM Aug. 9, 2026 – National Weather Service
...FLOOD ADVISORY REMAINS IN EFFECT UNTIL 415 PM CDT THIS AFTERNOON... * WHAT...Flooding caused by excessive rainfall continues. * WHERE...Northwestern Cook County in northeastern Illinois... Northwestern DuPage County in northeastern Illinois... * WHEN...Until 415 PM CDT. * IMPACTS...Creeks and streams may rise out of their banks. Flooding may occur in poor drainage and urban areas. Underpasses may be flooded. Roads and streets may be flooded. * ADDITIONAL DETAILS... - At 211 PM CDT, Doppler radar and automated rain gauges indicated heavy rain due to thunderstorms. Minor flooding is ongoing or expected to begin shortly in the advisory area. Between 0.5 and 1.5 inches of rain have fallen. - Some locations that will experience flooding include... Elgin, Arlington Heights, Evanston, Schaumburg, Palatine, Skokie, Des Plaines, Mount Prospect, Hoffman Estates, Glenview, Buffalo Grove, Bartlett, Streamwood, Carol Stream, Hanover Park, Wheeling and Park Ridge. - http://www.weather.gov/safety/flood PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flood Advisory means minor flooding along waterways and other poor drainage areas is imminent or may already be occurring. Persons in the advisory area should use caution and avoid flood waters. &&
Flood Advisory
Issued: 7:10 PM Aug. 9, 2026 – National Weather Service
...FLOOD ADVISORY IN EFFECT UNTIL 515 PM CDT THIS AFTERNOON... * WHAT...Flooding caused by excessive rainfall is expected. * WHERE...East Central Cook County in northeastern Illinois... Southern DuPage County in northeastern Illinois... Northwestern Will County in northeastern Illinois... * WHEN...Until 515 PM CDT. * IMPACTS...Creeks and streams may rise out of their banks. Flooding may occur in poor drainage and urban areas. Underpasses may be flooded. Roads and streets may be flooded. * ADDITIONAL DETAILS... - At 209 PM CDT, Doppler radar and automated rain gauges indicated heavy rain due to thunderstorms. Radar and observations indicate these storms are producing a quick 1 to 2 inches of rain in less than 45 minutes. This will likely result in minor flooding shortly after thunderstorms arrive. - Additional rainfall amounts up to 2 inches are expected over the area. This additional rain will result in minor flooding. - Some locations that will experience flooding include... Chicago, Aurora, Naperville, Bolingbrook, Oak Lawn, Downers Grove, Woodridge, Midway Airport, Chicago Lawn, Englewood, Bridgeport, Roseland, South Shore, Burbank and Blue Island. - http://www.weather.gov/safety/flood PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flood Advisory means minor flooding along waterways and other poor drainage areas is imminent or may already be occurring. Persons in the advisory area should use caution and avoid flood waters. &&
Severe Thunderstorm Warning
Issued: 7:03 PM Aug. 9, 2026 – National Weather Service
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 230 PM CDT FOR NORTHEASTERN KENDALL...NORTHWESTERN WILL...SOUTHEASTERN KANE AND SOUTHERN DUPAGE COUNTIES... At 202 PM CDT, a severe thunderstorm was located over Naperville, moving east at 30 mph. HAZARD...Ping pong ball size hail and 60 mph wind gusts. SOURCE...Radar indicated. IMPACT...People and animals outdoors will be injured. Expect hail damage to roofs, siding, windows, and vehicles. Expect wind damage to roofs, siding, and trees. Locations impacted include... Aurora, Naperville, Bolingbrook, Wheaton, Downers Grove, Lombard, Romeoville, Woodridge, Oswego, Glen Ellyn, West Chicago, Hinsdale, Lemont, Burr Ridge, Oak Brook, Westmont, Lisle, Darien, Montgomery, North Aurora, Warrenville, Winfield, Willowbrook, Clarendon Hills, and Boulder Hill. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. && HAIL THREAT...RADAR INDICATED; MAX HAIL SIZE...1.50 IN; WIND THREAT...RADAR INDICATED; MAX WIND GUST...60 MPH
Severe Thunderstorm Watch
Issued: 6:47 PM Aug. 9, 2026 – National Weather Service
SEVERE THUNDERSTORM WATCH 546, PREVIOUSLY IN EFFECT UNTIL 2 PM CDT THIS AFTERNOON, IS NOW IN EFFECT UNTIL 4 PM CDT THIS AFTERNOON FOR THE FOLLOWING AREAS IN ILLINOIS THIS WATCH INCLUDES 2 COUNTIES IN NORTHEAST ILLINOIS COOK DUPAGE THIS INCLUDES THE CITIES OF CAROL STREAM, CHICAGO, DOWNERS GROVE, EVANSTON, LEMONT, LOMBARD, NAPERVILLE, OAK LAWN, ORLAND PARK, PARK FOREST, SCHAUMBURG, AND WHEATON.
Flood Advisory
Issued: 6:28 PM Aug. 9, 2026 – National Weather Service
...FLOOD ADVISORY IN EFFECT UNTIL 430 PM CDT THIS AFTERNOON... * WHAT...Flooding caused by excessive rainfall is expected. * WHERE...Northeastern Cook County in northeastern Illinois... Central DuPage County in northeastern Illinois... * WHEN...Until 430 PM CDT. * IMPACTS...Creeks and streams may rise out of their banks. Flooding may occur in poor drainage and urban areas. Underpasses may be flooded. Roads and streets may be flooded. * ADDITIONAL DETAILS... - At 126 PM CDT, Doppler radar indicated heavy rain due to thunderstorms. Radar and observations indicate these storms are producing a quick 1 to 2 inches of rain in less than 45 minutes. This will likely result in minor flooding shortly after thunderstorms arrive. - Some locations that will experience flooding include... Chicago, Cicero, Evanston, Skokie, Berwyn, Wheaton, Oak Park, Downers Grove, Elmhurst, Lombard, Ohare Airport, Carol Stream, Park Ridge, Addison, Glendale Heights and Niles. - http://www.weather.gov/safety/flood PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flood Advisory means minor flooding along waterways and other poor drainage areas is imminent or may already be occurring. Persons in the advisory area should use caution and avoid flood waters. &&
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