Illinois Severe Extreme Heat Warning | Effective 07/03/2026 11:12

Headline: 
Extreme Heat Warning issued July 3 at 1:12PM CDT until July 3 at 7:00PM CDT by NWS Lincoln IL
Event: 
Extreme Heat Warning
Urgency: 
Expected
Effective: 
July 3, 2026 - 11:12am
Expires: 
July 3, 2026 - 5:00pm
Description: 
* WHAT...For the Extreme Heat Warning, dangerously hot conditions with heat index values up to 106. For the Heat Advisory, heat index values up to 103 expected. * WHERE...Portions of central, east central, southeast, and west central Illinois. * WHEN...For the Extreme Heat Warning, until 7 PM CDT this evening. For the Heat Advisory, from 11 AM to 7 PM CDT 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. Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes. 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: 
Scott; Morgan; Sangamon; Christian; Macon; Moultrie; Douglas; Coles; Edgar; Shelby; Cumberland; Clark; Effingham; Jasper; Crawford; Clay; Richland; Lawrence
Forcast Office: 
NWS Lincoln IL