Active Weather Alerts
Severe Thunderstorm Warning
Issued: 9:53 PM Jul. 27, 2026 – National Weather Service
The National Weather Service in Chicago has issued a * Severe Thunderstorm Warning for... Will County in northeastern Illinois... South central DuPage County in northeastern Illinois... Southeastern Cook County in northeastern Illinois... * Until 600 PM CDT. * At 453 PM CDT, severe thunderstorms were located along a line extending from Westmont to Indian Head Park to Midway Airport to Northerly Island, moving south at 40 mph. HAZARD...60 mph wind gusts and half dollar size hail. SOURCE...Radar indicated. IMPACT...Hail damage to vehicles is expected. Expect wind damage to roofs, siding, and trees. * Locations impacted include... Joliet, Bolingbrook, Orland Park, Tinley Park, Downers Grove, Romeoville, Calumet City, Woodridge, Chicago Heights, Lansing, Oak Forest, Harvey, Lockport, New Lenox, Homer Glen, Blue Island, Dolton, Park Forest, Homewood, Matteson, Mokena, Frankfort, Steger, Peotone, and Lisle. 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...1.25 IN; WIND THREAT...RADAR INDICATED; MAX WIND GUST...60 MPH
Flash Flood Warning
Issued: 8:36 PM Jul. 27, 2026 – National Weather Service
The National Weather Service in Chicago has issued a * Flash Flood Warning for... Northeastern Kendall County in northeastern Illinois... Northwestern Will County in northeastern Illinois... * Until 645 PM CDT. * At 336 PM CDT, Doppler radar indicated thunderstorms producing rainfall rates of 1 to 3 inches per hour. Up to 1.5 inches has fallen from this storm over the last 30 minutes near Plainfield and Oswego. Flash flooding is expected to begin shortly. HAZARD...Flash flooding. SOURCE...Radar. IMPACT...Rapid-onset flooding of creeks, streams, drainage ditches, streets, underpasses, low-lying areas, and other poor drainage areas. * Some locations that will experience flash flooding include... Joliet, Bolingbrook, Romeoville, Plainfield, Oswego, Lockport, New Lenox, Homer Glen, Mokena, Frankfort, Channahon, Minooka, Crest Hill, Shorewood, Manhattan, Ingalls Park, Elwood, Preston Heights. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Flash Flood Warning means rapid-onset flooding is imminent or may already be occurring. Persons along creeks, drainage ditches, and other waterways should take immediate precautions to protect life and property. && FLASH FLOOD...RADAR INDICATED; EXPECTED RAINFALL RATE...1-3 INCHES IN 1 HOUR
Severe Thunderstorm Watch
Issued: 7:22 PM Jul. 27, 2026 – National Weather Service
THE NATIONAL WEATHER SERVICE HAS ISSUED SEVERE THUNDERSTORM WATCH 520 IN EFFECT UNTIL 7 PM CDT /8 PM EDT/ THIS EVENING FOR THE FOLLOWING AREAS IN ILLINOIS THIS WATCH INCLUDES 6 COUNTIES IN EAST CENTRAL ILLINOIS IROQUOIS IN NORTHEAST ILLINOIS COOK DUPAGE KANKAKEE LAKE IL WILL IN INDIANA THIS WATCH INCLUDES 5 COUNTIES IN NORTHWEST INDIANA BENTON JASPER LAKE IN NEWTON PORTER THIS INCLUDES THE CITIES OF BOLINGBROOK, BOURBONNAIS, BUFFALO GROVE, CAROL STREAM, CHESTERTON, CHICAGO, DEMOTTE, DOWNERS GROVE, EVANSTON, FOWLER, GARY, GILMAN, GURNEE, HAMMOND, JOLIET, KANKAKEE, KENTLAND, LEMONT, LOMBARD, MERRILLVILLE, MOROCCO, MUNDELEIN, NAPERVILLE, OAK LAWN, ORLAND PARK, OXFORD, PARK FOREST, PORTAGE, RENSSELAER, ROSELAWN, SCHAUMBURG, VALPARAISO, WATSEKA, WAUKEGAN, WHEATON, AND WILMINGTON.
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