538 FLUS43 KILX 291903 HWOILX Hazardous Weather Outlook National Weather Service Lincoln IL 203 PM CDT Mon Jun 29 2026 ILZ027>031-036>038-040>057-061-301915- 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- 203 PM CDT Mon Jun 29 2026 This Hazardous Weather Outlook is for central Illinois, east central Illinois and west central Illinois. .DAY ONE...Tonight. Overnight temperatures will only drop into the mid-to-upper 70s, providing very little relief from the oppressive humidity. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. The hot and humid weather will persist through Thursday as heat index readings peak at 105 to 110 degrees each afternoon. As a result, there is a high risk of heat-related illness in sensitive individuals and those without access to effective cooling. Thunderstorm will be possible Friday through Sunday, although the risk for severe weather will remain low (less than a 15% chance). Flooding will subside along the Illinois River at Peoria by Thursday, but will continue downstream through the entire period. .SPOTTER INFORMATION STATEMENT... Spotter activation is not anticipated tonight. $$ ILZ062-063-066>068-071>073-301915- Cumberland-Clark-Effingham-Jasper-Crawford-Clay-Richland-Lawrence- 203 PM CDT Mon Jun 29 2026 This Hazardous Weather Outlook is for east central Illinois and southeast Illinois. .DAY ONE...Tonight. Overnight temperatures will only drop into the mid-to-upper 70s, providing very little relief from the oppressive humidity. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. The hot and humid weather will persist through Thursday as heat index readings peak at 105 to 110 degrees each afternoon. As a result, there is a high risk of heat-related illness in sensitive individuals and those without access to effective cooling. Thunderstorm will be possible Friday through Sunday, although the risk for severe weather will remain low (less than a 15% chance). Flooding will subside along the Embarras River and Little Wabash River by Thursday. .SPOTTER INFORMATION STATEMENT... Spotter activation is not anticipated tonight. $$ MJA