Illinois, Indiana Moderate Heat Advisory | Effective 08/31/2026 10:24

Headline: 
Heat Advisory issued August 31 at 12:24PM CDT until September 1 at 9:00PM CDT by NWS Chicago IL
Event: 
Heat Advisory
Urgency: 
Expected
Effective: 
August 31, 2026 - 10:24am
Expires: 
August 31, 2026 - 8:30pm
Description: 
* WHAT...Peak heat indices of 100 to 105 degrees expected Tuesday and Wednesday afternoons. * WHERE...Portions of northern and central Illinois near and south of I-80, as well as all of northwest Indiana. * WHEN...For the first Heat Advisory, from noon CDT to 9 PM CDT Tuesday. For the second Heat Advisory, from noon CDT to 9 PM CDT Wednesday. * IMPACTS...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.
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