Illinois Moderate Heat Advisory | Effective 07/26/2026 08:10

Headline: 
Heat Advisory issued July 26 at 10:10AM CDT until July 26 at 9:00PM CDT by NWS Quad Cities IA IL
Event: 
Heat Advisory
Urgency: 
Expected
Effective: 
July 26, 2026 - 8:10am
Expires: 
July 26, 2026 - 4:15pm
Description: 
...EXTREME HEAT WATCH REMAINS IN EFFECT FROM 9 PM CDT THIS EVENING THROUGH MONDAY EVENING... * WHAT...For the Heat Advisory, heat index values between 100 to 105 expected. For the Extreme Heat Watch, continued dangerously hot conditions possible with heat index values potentially between 100 to 110. * WHERE...Carroll, Jo Daviess, and Stephenson Counties. * WHEN...For the Heat Advisory, until 9 PM CDT this evening. For the Extreme Heat Watch, from 9 PM CDT this evening through Monday evening. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events. * ADDITIONAL DETAILS...Little relief is expected tonight with low temperatures in the mid to upper 70s.
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.
Area Description: 
Jo Daviess; Stephenson; Carroll
Forcast Office: 
NWS Quad Cities IA IL