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

Hazardous Weather Conditions

Current conditions at

Marshall County Airport (KC75)

Lat: 41.02°NLon: 89.39°WElev: 545ft.

Partly Cloudy

80°F

27°C

Humidity 71%
Wind Speed S 3 mph
Barometer 29.96 in
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Heat Index83°F (28°C)
Last update 1 Sep 11:35 pm CDT
Extended Forecast for

Minonk IL

Heat Advisory September 1, 11:56pm until September 3, 07:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory September 1, 11:56pm until September 3, 07:00pm

    NOW until 7:00pm Thu

    Heat Advisory

  • Tonight

    Low: 75 °F

    Clear

  • Wednesday

    Wednesday: Sunny and hot, with a high near 95. Heat index values as high as 105. Southwest wind 7 to 9 mph, with gusts as high as 16 mph.

    High: 95 °F

    Hot

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 76. South southwest wind around 7 mph, with gusts as high as 15 mph.

    Low: 76 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 94. Heat index values as high as 103. West southwest wind 5 to 8 mph.

    High: 94 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 75. Calm wind becoming south southwest around 5 mph after midnight.

    Low: 75 °F

    Mostly Clear

  • Friday

    Friday: A chance of showers and thunderstorms before 10am, then a chance of showers between 10am and 1pm. Sunny, with a high near 92. Southwest wind 3 to 5 mph. Chance of precipitation is 30%.

    High: 92 °F

    Chance
    T-storms then
    Chance
    Showers

  • Friday Night

    Friday Night: A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 72. Calm wind.

    Low: 72 °F

    Partly Cloudy
    then Chance
    T-storms

  • Saturday

    Saturday: Mostly sunny, with a high near 90.

    High: 90 °F

    Mostly Sunny

Detailed Forecast

Tonight
Clear, with a low around 75. South southwest wind around 7 mph.
Wednesday
Sunny and hot, with a high near 95. Heat index values as high as 105. Southwest wind 7 to 9 mph, with gusts as high as 16 mph.
Wednesday Night
Mostly clear, with a low around 76. South southwest wind around 7 mph, with gusts as high as 15 mph.
Thursday
Sunny, with a high near 94. Heat index values as high as 103. West southwest wind 5 to 8 mph.
Thursday Night
Mostly clear, with a low around 75. Calm wind becoming south southwest around 5 mph after midnight.
Friday
A chance of showers and thunderstorms before 10am, then a chance of showers between 10am and 1pm. Sunny, with a high near 92. Southwest wind 3 to 5 mph. Chance of precipitation is 30%.
Friday Night
A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 72. Calm wind.
Saturday
Mostly sunny, with a high near 90.
Saturday Night
Mostly clear, with a low around 69.
Sunday
Mostly sunny, with a high near 86.
Sunday Night
Partly cloudy, with a low around 66.
Labor Day
Mostly sunny, with a high near 83.
Monday Night
Partly cloudy, with a low around 63.
Tuesday
Mostly sunny, with a high near 83.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Minonk IL
 40.9°N 89.02°W (Elev. 751 ft)
Last Update:
10:36 pm CDT Sep 1, 2026
Forecast Valid:
11pm CDT Sep 1, 2026-6pm CDT Sep 8, 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