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

91°F

33°C

Humidity 55%
Wind Speed SW 9 mph
Barometer 29.97 in
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index99°F (37°C)
Last update 3 Sep 12:15 pm CDT
Extended Forecast for

Brook IN

Heat Advisory September 3, 12:35pm until September 3, 09:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory September 3, 12:35pm until September 3, 09:00pm

    NOW until 9:00pm Thu

    Heat Advisory

  • This Afternoon

    High: 92 °F

    Chance
    T-storms

  • Tonight

    Tonight: A 10 percent chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 73. Calm wind becoming south southwest around 5 mph.

    Low: 73 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 94. Heat index values as high as 102. Calm wind becoming west around 5 mph in the afternoon. Winds could gust as high as 10 mph.

    High: 94 °F

    Sunny

  • Friday Night

    Friday Night: A 30 percent chance of showers and thunderstorms after 1am. Mostly clear, with a low around 71. Calm wind.

    Low: 71 °F

    Mostly Clear
    then Chance
    T-storms

  • Saturday

    Saturday: A chance of showers and thunderstorms before 7am, then a chance of showers between 7am and 1pm, then a slight chance of showers and thunderstorms after 1pm. Sunny, with a high near 89. Calm wind becoming north northeast around 5 mph in the afternoon. Chance of precipitation is 30%.

    High: 89 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 63.

    Low: 63 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 83.

    High: 83 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 60.

    Low: 60 °F

    Mostly Clear

Detailed Forecast

This Afternoon
A 30 percent chance of showers and thunderstorms, mainly between 4pm and 5pm. Sunny, with a high near 92. Heat index values as high as 101. Southwest wind around 10 mph, with gusts as high as 15 mph.
Tonight
A 10 percent chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 73. Calm wind becoming south southwest around 5 mph.
Friday
Sunny, with a high near 94. Heat index values as high as 102. Calm wind becoming west around 5 mph in the afternoon. Winds could gust as high as 10 mph.
Friday Night
A 30 percent chance of showers and thunderstorms after 1am. Mostly clear, with a low around 71. Calm wind.
Saturday
A chance of showers and thunderstorms before 7am, then a chance of showers between 7am and 1pm, then a slight chance of showers and thunderstorms after 1pm. Sunny, with a high near 89. Calm wind becoming north northeast around 5 mph in the afternoon. Chance of precipitation is 30%.
Saturday Night
Partly cloudy, with a low around 63.
Sunday
Sunny, with a high near 83.
Sunday Night
Mostly clear, with a low around 60.
Labor Day
Sunny, with a high near 83.
Monday Night
Partly cloudy, with a low around 63.
Tuesday
Mostly sunny, with a high near 86.
Tuesday Night
Partly cloudy, with a low around 70.
Wednesday
Mostly sunny, with a high near 89.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Brook IN
 40.86°N 87.37°W
Last Update:
12:31 pm CDT Sep 3, 2026
Forecast Valid:
12pm CDT Sep 3, 2026-6pm CDT Sep 9, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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