National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Greater Kankakee Airport (KIKK)

Lat: 41.07°NLon: 87.85°WElev: 617ft.

Fair

76°F

24°C

Humidity 92%
Wind Speed S 6 mph
Barometer 29.94 in
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index76°F (24°C)
Last update 4 Sep 3:35 am CDT
Extended Forecast for

Grant Park IL

Heat Advisory September 4, 03:53am until September 4, 10:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory September 4, 03:53am until September 4, 10:00pm

    NOW until 10:00pm Fri

    Heat Advisory

  • Overnight

    Low: 77 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 93. Heat index values as high as 106. West southwest wind 5 to 10 mph, with gusts as high as 15 mph.

    High: 93 °F

    Sunny

  • Friday Night

    Friday Night: A 30 percent chance of showers and thunderstorms, mainly between 1am and 4am. Partly cloudy, with a low around 71. West southwest wind around 5 mph becoming calm.

    Low: 71 °F

    Partly Cloudy
    then Chance
    T-storms

  • Saturday

    Saturday: A 10 percent chance of showers and thunderstorms before 7am. Sunny, with a high near 88. Heat index values as high as 97. Northwest wind 5 to 10 mph becoming north northeast in the morning.

    High: 88 °F

    Slight Chance
    T-storms then
    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 65. North northeast wind 5 to 10 mph, with gusts as high as 15 mph.

    Low: 65 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 82.

    High: 82 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 60.

    Low: 60 °F

    Partly Cloudy

  • Labor Day

    Labor Day: Sunny, with a high near 82.

    High: 82 °F

    Sunny

Detailed Forecast

Overnight
Mostly clear, with a steady temperature around 77. South southwest wind around 5 mph.
Friday
Sunny, with a high near 93. Heat index values as high as 106. West southwest wind 5 to 10 mph, with gusts as high as 15 mph.
Friday Night
A 30 percent chance of showers and thunderstorms, mainly between 1am and 4am. Partly cloudy, with a low around 71. West southwest wind around 5 mph becoming calm.
Saturday
A 10 percent chance of showers and thunderstorms before 7am. Sunny, with a high near 88. Heat index values as high as 97. Northwest wind 5 to 10 mph becoming north northeast in the morning.
Saturday Night
Partly cloudy, with a low around 65. North northeast wind 5 to 10 mph, with gusts as high as 15 mph.
Sunday
Mostly sunny, with a high near 82.
Sunday Night
Partly cloudy, with a low around 60.
Labor Day
Sunny, with a high near 82.
Monday Night
Partly cloudy, with a low around 62.
Tuesday
Mostly sunny, with a high near 87.
Tuesday Night
Partly cloudy, with a low around 70.
Wednesday
Mostly sunny, with a high near 90.
Wednesday Night
A chance of showers. Partly cloudy, with a low around 68.
Thursday
Partly sunny, with a high near 84.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Grant Park IL
 41.24°N 87.63°W
Last Update:
2:56 am CDT Sep 4, 2026
Forecast Valid:
3am CDT Sep 4, 2026-6pm CDT Sep 10, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation