National Weather Service Forecast for: Cicero IL
Issued by: National Weather Service Chicago, IL
Updated: 9:41 pm CDT Jul 27, 2025
 
Tonight

Tonight: Partly cloudy, with a low around 76. South southeast wind around 5 mph becoming calm.
Partly Cloudy
Monday

Monday: Mostly sunny, with a high near 94. Heat index values as high as 105. West southwest wind around 5 mph, with gusts as high as 10 mph.
Mostly Sunny
Monday
Night
Monday Night: A 20 percent chance of showers and thunderstorms.  Partly cloudy, with a low around 76. East wind around 5 mph becoming calm  in the evening.
Slight Chance
T-storms
Tuesday

Tuesday: A 30 percent chance of showers and thunderstorms, mainly after 1pm.  Mostly sunny, with a high near 90. Heat index values as high as 99. Northwest wind 5 to 10 mph becoming southeast in the afternoon.
Chance
T-storms
Tuesday
Night
Tuesday Night: A 30 percent chance of showers and thunderstorms, mainly after 1am.  Mostly cloudy, with a low around 73. North northeast wind around 5 mph.
Chance
T-storms
Wednesday

Wednesday: A 50 percent chance of showers and thunderstorms.  Mostly cloudy, with a high near 80.
Chance
T-storms
Wednesday
Night
Wednesday Night: A 30 percent chance of showers and thunderstorms, mainly before 1am.  Mostly cloudy, with a low around 67.
Chance
T-storms
Thursday

Thursday: Mostly sunny, with a high near 76.
Mostly Sunny
Thursday
Night
Thursday Night: Partly cloudy, with a low around 65.
Partly Cloudy
Lo 76 °F Hi 94 °F Lo 76 °F Hi 90 °F Lo 73 °F Hi 80 °F Lo 67 °F Hi 76 °F Lo 65 °F

Hazardous Weather Outlook
Heat Advisory
 

Tonight
 
Partly cloudy, with a low around 76. South southeast wind around 5 mph becoming calm.
Monday
 
Mostly sunny, with a high near 94. Heat index values as high as 105. West southwest wind around 5 mph, with gusts as high as 10 mph.
Monday Night
 
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 76. East wind around 5 mph becoming calm in the evening.
Tuesday
 
A 30 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 90. Heat index values as high as 99. Northwest wind 5 to 10 mph becoming southeast in the afternoon.
Tuesday Night
 
A 30 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 73. North northeast wind around 5 mph.
Wednesday
 
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 80.
Wednesday Night
 
A 30 percent chance of showers and thunderstorms, mainly before 1am. Mostly cloudy, with a low around 67.
Thursday
 
Mostly sunny, with a high near 76.
Thursday Night
 
Partly cloudy, with a low around 65.
Friday
 
Mostly sunny, with a high near 76.
Friday Night
 
Mostly clear, with a low around 63.
Saturday
 
Sunny, with a high near 78.
Saturday Night
 
Partly cloudy, with a low around 64.
Sunday
 
Mostly sunny, with a high near 81.

 

Forecast from NOAA-NWS for Cicero IL.