


Hazardous Weather Outlook
Issued by NWS Central Illinois
Issued by NWS Central Illinois
053 FLUS43 KILX 171617 HWOILX Hazardous Weather Outlook National Weather Service Lincoln IL 1117 AM CDT Sun Aug 17 2025 ILZ027>031-036>038-040>057-061>063-066>068-071>073-181630- 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- Cumberland-Clark-Effingham-Jasper-Crawford-Clay-Richland-Lawrence- 1117 AM CDT Sun Aug 17 2025 This Hazardous Weather Outlook is for central Illinois, east central Illinois, southeast Illinois and west central Illinois. .DAY ONE...Today and tonight. Heat indices are forecast to peak between 97 and 104 this afternoon, and will be slow to fall overnight, falling to around 75 by Monday morning. There is a 20% chance of a storm this afternoon into this evening. Any storm that develops will be capable of frequent lightning, heavy rain, and locally strong winds. .DAYS TWO THROUGH SEVEN...Monday through Saturday. Once again, the combination of heat and humidity will result in heat indices between 100 and 105 degrees Monday afternoon and Tuesday afternoon. There is a 20% chance of thunderstorms Monday and a 30% chance of thunderstorms Tuesday. Any storm that develops will be capable of frequent lightning, heavy rain, and locally strong winds. .SPOTTER INFORMATION STATEMENT... Spotter activation is not anticipated through tonight. $$ Bumgardner