There are currently 9 Weather Alerts in Illinoisselect a different state
Extreme Heat Warning issued September 4 at 12:42AM CDT until September 5 at 8:00PM CDT by NWS Paducah KY
Event: Extreme Heat Warning
Message Type: Update
Urgency: Expected
Severity: Severe
Certainty: Likely
Affected Area: Jefferson; Wayne; Edwards; Wabash; Perry; Franklin; Hamilton; White; Jackson; Williamson; Saline; Gallatin; Union; Johnson; Pope; Hardin; Alexander; Pulaski; Massac; Gibson; Pike; Posey; Vanderburgh; Warrick; Spencer; Fulton; Hickman; Carlisle; Ballard; McCracken; Graves; Livingston; Marshall; Calloway; Crittenden; Lyon; Trigg; Caldwell; Union; Webster; Hopkins; Christian; Henderson; Daviess; McLean; Muhlenberg; Todd; Perry; Bollinger; Cape Girardeau; Wayne; Carter; Ripley; Butler; Stoddard; Scott; Mississippi; New Madrid
Wheather Alert Summary: * what...Dangerously hot conditions with heat index values 105 to
110.
* where...All of southern illinois, southwest indiana, western
kentucky, and southeast missouri.
* when...Until 8 pm cdt /9 pm edt/ saturday.
* impacts...Heat related illnesses increase significantly during
extreme heat and high humidity events.
* additional details...Overnight low temperatures in the mid 70s will
provide little relief from the heat.
Heat Advisory issued September 3 at 8:33PM CDT until September 4 at 7:00PM CDT by NWS Quad Cities IA IL
Event: Heat Advisory
Message Type: Update
Urgency: Expected
Severity: Moderate
Certainty: Likely
Affected Area: Buchanan; Delaware; Dubuque; Benton; Linn; Jones; Jackson; Clinton; Jo Daviess; Stephenson; Carroll; Whiteside
Wheather Alert Summary: * what...Heat index values of 100 to 105.
* where...Portions of northwest illinois and east central and
northeast iowa.
* when...Until 7 pm cdt friday.
* impacts...Hot temperatures and high humidity may cause heat
illnesses.
* additional details...Thunderstorms and storm outflow may interrupt
the heat at times.
Extreme Heat Warning issued September 3 at 8:33PM CDT until September 4 at 7:00PM CDT by NWS Quad Cities IA IL
Event: Extreme Heat Warning
Message Type: Update
Urgency: Expected
Severity: Severe
Certainty: Likely
Affected Area: Henry; Bureau; Putnam
Wheather Alert Summary: * what...Dangerously hot conditions with heat index values of 100 to
110.
* where...Bureau, putnam, and henry il counties.
* when...Until 7 pm cdt friday.
* impacts...Heat related illnesses increase significantly during
extreme heat and high humidity events.
Extreme Heat Warning issued September 3 at 8:33PM CDT until September 5 at 7:00PM CDT by NWS Quad Cities IA IL
Event: Extreme Heat Warning
Message Type: Update
Urgency: Expected
Severity: Severe
Certainty: Likely
Affected Area: Iowa; Johnson; Cedar; Muscatine; Scott; Keokuk; Washington; Louisa; Jefferson; Henry; Des Moines; Van Buren; Lee; Rock Island; Mercer; Henderson; Warren; Hancock; McDonough; Scotland; Clark
Wheather Alert Summary: * what...Dangerously hot conditions with heat index values of 100 to
110.
* where...Portions of northwest and west central illinois, east
central and southeast iowa, and northeast missouri.
* when...Until 7 pm cdt saturday.
* impacts...Heat related illnesses increase significantly during
extreme heat and high humidity events.
Heat Advisory issued September 3 at 7:56PM CDT until September 4 at 7:00PM CDT by NWS Chicago IL
Event: Heat Advisory
Message Type: Alert
Urgency: Expected
Severity: Moderate
Certainty: Likely
Affected Area: La Salle; Grundy; Kankakee; Livingston; Iroquois; Ford; Newton; Jasper; Benton
Wheather Alert Summary: * what...Heat index values 100 to 105 expected.
* where...In illinois, livingston, ford, iroquois, la salle, grundy,
and kankakee counties. in indiana, benton, jasper, and newton
counties.
* when...Until 7 pm cdt /8 pm edt/ friday.
* impacts...Hot temperatures and high humidity may cause heat
illnesses especially after several days of dangerous heat.
Extreme Heat Warning issued September 3 at 2:45PM CDT until September 5 at 8:00PM CDT by NWS St Louis MO
Event: Extreme Heat Warning
Message Type: Update
Urgency: Expected
Severity: Severe
Certainty: Likely
Affected Area: Greene; Macoupin; Montgomery; Bond; Fayette; Clinton; Marion; Washington; Randolph; Adams; Brown; Pike; Calhoun; Jersey; Knox; Lewis; Shelby; Marion; Monroe; Ralls; Pike; Boone; Audrain; Moniteau; Cole; Osage; Callaway; Montgomery; Lincoln; Gasconade; Warren; Franklin; Crawford; Washington; St. Francois; Ste. Genevieve; Iron; Madison; Reynolds
Wheather Alert Summary: * what...Dangerously hot conditions with heat index values up to 106.
* where...Portions of south central, southwest, and west central
illinois and central, east central, northeast, and southeast
missouri.
* when...Until 8 pm cdt saturday.
* impacts...Heat related illnesses increase significantly during
extreme heat and high humidity events.
Extreme Heat Warning issued September 3 at 2:45PM CDT until September 5 at 8:00PM CDT by NWS St Louis MO
Event: Extreme Heat Warning
Message Type: Update
Urgency: Expected
Severity: Severe
Certainty: Likely
Affected Area: Madison; St. Clair; Monroe; St. Charles; St. Louis; St. Louis City; Jefferson
Wheather Alert Summary: * what...Dangerously hot conditions with heat index values up to 108.
* where...In illinois, madison il, monroe il, and saint clair il
counties. in missouri, jefferson mo, saint charles mo, saint louis
city mo, and saint louis mo counties.
* when...Until 8 pm cdt saturday.
* impacts...Heat related illnesses increase significantly during
extreme heat and high humidity events.
Extreme Heat Warning issued September 3 at 2:38AM CDT until September 4 at 7:00PM CDT by NWS Lincoln IL
Event: Extreme Heat Warning
Message Type: Update
Urgency: Expected
Severity: Severe
Certainty: Likely
Affected Area: Knox; Stark; Peoria; Marshall; Woodford; Fulton; Tazewell; McLean; Mason; Logan; De Witt; Piatt; Champaign; Vermilion; Macon; Moultrie; Douglas; Coles; Edgar; Clark
Wheather Alert Summary: * what...Dangerously hot conditions with heat index values up to 105.
* where...Portions of central, east central, and west central
illinois.
* when...Until 7 pm cdt friday.
* impacts...Heat related illnesses increase significantly during
extreme heat and high humidity events.
Extreme Heat Warning issued September 3 at 2:38AM CDT until September 5 at 7:00PM CDT by NWS Lincoln IL
Event: Extreme Heat Warning
Message Type: Update
Urgency: Expected
Severity: Severe
Certainty: Likely
Affected Area: Schuyler; Cass; Menard; Scott; Morgan; Sangamon; Christian; Shelby; Cumberland; Effingham; Jasper; Crawford; Clay; Richland; Lawrence
Wheather Alert Summary: * what...Dangerously hot conditions with heat index values up to 105.
* where...Portions of central, east central, southeast, and west
central illinois.
* when...Until 7 pm cdt saturday.
* impacts...Heat related illnesses increase significantly during
extreme heat and high humidity events.