Illinois, Indiana, Kentucky, Missouri Moderate Heat Advisory | Effective 08/31/2026 22:42

Headline: 
Heat Advisory issued September 1 at 12:42AM CDT until September 4 at 8:00PM CDT by NWS Paducah KY
Event: 
Heat Advisory
Urgency: 
Expected
Effective: 
August 31, 2026 - 10:42pm
Expires: 
September 1, 2026 - 2:00pm
Description: 
* WHAT...Daily peak heat index values from 100 to 108 degrees. * WHERE...Portions of southern Illinois, southwest Indiana, western Kentucky, and southeast Missouri. * WHEN...Until 8 PM CDT /9 PM EDT/ Friday. * IMPACTS...Prolonged duration hot temperatures and high humidity may cause heat illnesses. * ADDITIONAL DETAILS...Heat index values above 100 degrees may continue into Saturday. Several warm record overnight low temperatures in the mid-70s is possible this week.
Instruction: 
Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.
Area Description: 
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
Forcast Office: 
NWS Paducah KY
Sender: 
w-nws.webmaster@noaa.gov