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

Extreme Heat and Excessive Rainfall This Week

A significant heat wave continues for the Rockies, Northern Plains, and Great Lakes into the Mid-Atlantic, peaking in intensity through midweek and lingering across parts of the Northern Plains and Midwest until this weekend. Excessive rainfall my bring life-threatening and locally catastrophic flash and urban flooding across portions of southwestern Texas through early Friday. Read More >

Hazardous Weather Conditions

Current conditions at

Greater Kankakee Airport (KIKK)

Lat: 41.07°NLon: 87.85°WElev: 617ft.

Fair

76°F

24°C

Humidity 83%
Wind Speed Calm
Barometer 30.14 in
Dewpoint 71°F (22°C)
Visibility 10.00 mi
Heat Index77°F (25°C)
Last update 14 Jul 10:15 pm CDT
Extended Forecast for

Peotone IL

  • Tonight

    Tonight: Clear, with a low around 72. West southwest wind around 5 mph.

    Low: 72 °F

    Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 92. Heat index values as high as 100. West wind around 5 mph.

    High: 92 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 73. West wind around 5 mph becoming calm in the evening.

    Low: 73 °F

    Partly Cloudy

  • Thursday

    Thursday: A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 91. Heat index values as high as 99. Calm wind becoming west southwest around 5 mph in the afternoon.

    High: 91 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 70. South wind around 5 mph becoming calm in the evening.

    Low: 70 °F

    Partly Cloudy

  • Friday

    Friday: Showers and thunderstorms likely, mainly after 1pm. Mostly sunny, with a high near 88. Chance of precipitation is 70%.

    High: 88 °F

    Chance
    T-storms then
    T-storms
    Likely

  • Friday Night

    Friday Night: A 30 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 70.

    Low: 70 °F

    Chance
    T-storms

  • Saturday

    Saturday: A chance of showers and thunderstorms after 1pm. Sunny, with a high near 90.

    High: 90 °F

    Sunny then
    Chance
    T-storms

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 69.

    Low: 69 °F

    Chance
    T-storms

Detailed Forecast

Tonight
Clear, with a low around 72. West southwest wind around 5 mph.
Wednesday
Mostly sunny, with a high near 92. Heat index values as high as 100. West wind around 5 mph.
Wednesday Night
Partly cloudy, with a low around 73. West wind around 5 mph becoming calm in the evening.
Thursday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 91. Heat index values as high as 99. Calm wind becoming west southwest around 5 mph in the afternoon.
Thursday Night
Partly cloudy, with a low around 70. South wind around 5 mph becoming calm in the evening.
Friday
Showers and thunderstorms likely, mainly after 1pm. Mostly sunny, with a high near 88. Chance of precipitation is 70%.
Friday Night
A 30 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 70.
Saturday
A chance of showers and thunderstorms after 1pm. Sunny, with a high near 90.
Saturday Night
A chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 69.
Sunday
Mostly sunny, with a high near 86.
Sunday Night
Partly cloudy, with a low around 67.
Monday
A chance of showers and thunderstorms. Mostly sunny, with a high near 87.
Monday Night
A chance of showers. Partly cloudy, with a low around 67.
Tuesday
Mostly sunny, with a high near 83.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Peotone IL
 41.34°N 87.8°W
Last Update:
8:06 pm CDT Jul 14, 2026
Forecast Valid:
10pm CDT Jul 14, 2026-6pm CDT Jul 21, 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