Illinois, Indiana, Kentucky, Missouri Severe Extreme Heat Warning | Effective 07/03/2026 01:21

Headline: 
Extreme Heat Warning issued July 3 at 3:21AM CDT until July 3 at 8:00PM CDT by NWS Paducah KY
Event: 
Extreme Heat Warning
Urgency: 
Expected
Effective: 
July 3, 2026 - 1:21am
Expires: 
July 3, 2026 - 2:00pm
Description: 
* WHAT...For the Extreme Heat Warning, dangerously hot conditions with heat index values from 105 to 112 degrees can be expected. For the Heat Advisory, heat index values will reach from 102 to 107 degrees. * WHERE...All of southern Illinois, southwest Indiana, western Kentucky, and southeast Missouri. * WHEN...For the Extreme Heat Warning, until 8 PM CDT /9 PM EDT/ this evening. For the Heat Advisory, from 8 PM CDT /9 PM EDT/ this evening to 8 PM CDT /9 PM EDT/ Saturday. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events. Hot temperatures and high humidity may cause heat illnesses.
Instruction: 
Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke. Monitor the latest forecasts and warnings for updates. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1.
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