One product issued by NWS for: Chatham IL
Hazardous Weather Outlook
Hazardous Weather Outlook National Weather Service Lincoln IL 226 PM CDT Mon Jun 8 2026 ILZ027>031-036>038-040>057-061-091930- Knox-Stark-Peoria-Marshall-Woodford-Fulton-Tazewell-McLean-Schuyler- Mason-Logan-De Witt-Piatt-Champaign-Vermilion-Cass-Menard-Scott- Morgan-Sangamon-Christian-Macon-Moultrie-Douglas-Coles-Edgar-Shelby- 226 PM CDT Mon Jun 8 2026 This Hazardous Weather Outlook is for central Illinois, east central Illinois and west central Illinois. .DAY ONE...Tonight. Periods of thunderstorms are expected into this evening, though a few may linger past midnight. While the severe weather threat is low, rainfall rates of 2 to 3 inches per hour may cause localized flash flooding. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Scattered thunderstorms are expected Tuesday evening, and a few may be strong or briefly severe. However, the better chances for severe weather will be Wednesday and especially on Thursday. There also remains a concern for localized flooding. Hot weather will develop on Tuesday, and Wednesday. Heat index values over 95-100 degrees are expected on Tuesday west of I-55, and over all of central and southeast Illinois on Wednesday. .SPOTTER INFORMATION STATEMENT... Spotter activation is not anticipated tonight. $$