Illinois, Indiana Moderate Heat Advisory | Effective 09/01/2026 22:55

Headline: 
Heat Advisory issued September 2 at 12:55AM CDT until September 2 at 9:00PM CDT by NWS Chicago IL
Event: 
Heat Advisory
Urgency: 
Expected
Effective: 
September 1, 2026 - 10:55pm
Expires: 
September 2, 2026 - 9:00am
Description: 
* WHAT...Heat index values of around 105 expected. * WHERE...Portions of central, east central, north central, and northeast Illinois and northwest Indiana. * WHEN...From noon CDT /1 PM EDT/ today to 9 PM CDT /10 PM EDT/ this evening. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.
Instruction: 
Take extra precautions when outside or consider altering outdoor plans. 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: 
La Salle; Kendall; Grundy; Kankakee; Livingston; Iroquois; Ford; Southern Cook; Northern Will; Southern Will; Eastern Will; Lake; Porter; Newton; Jasper; Benton
Forcast Office: 
NWS Chicago IL
Sender: 
w-nws.webmaster@noaa.gov