Illinois Moderate Heat Advisory | Effective 08/31/2026 19:30

Headline: 
Heat Advisory issued August 31 at 9:30PM CDT until September 3 at 7:00PM CDT by NWS Lincoln IL
Event: 
Heat Advisory
Urgency: 
Expected
Effective: 
August 31, 2026 - 7:30pm
Expires: 
September 1, 2026 - 3:00am
Description: 
* WHAT...Daytime heat index values up to 105 expected, only falling into the mid to upper 70s at night. * WHERE...Marshall, McLean, Woodford, Champaign, Edgar, and Vermilion Counties. * WHEN...From 1 PM Tuesday to 7 PM CDT Thursday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.
Instruction: 
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.
Area Description: 
Marshall; Woodford; McLean; Champaign; Vermilion; Edgar
Forcast Office: 
NWS Lincoln IL
Sender: 
w-nws.webmaster@noaa.gov