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.

Mostly Cloudy

72°F

22°C

Humidity 91%
Wind Speed SE 7 mph
Barometer 29.92 in
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Last update 26 Jul 5:15 am CDT
Extended Forecast for

Minonk IL

Heat Advisory July 26, 12:00pm until July 27, 09:00pm
Click here for hazard details and duration
Heat Advisory

  • Today

    Today: Patchy fog before 9am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 89. Heat index values as high as 105. Calm wind becoming south southwest 5 to 7 mph in the morning.

    High: 89 °F

    Patchy Fog
    then Partly
    Sunny

  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms after 2am. Partly cloudy, with a low around 76. Light and variable wind becoming east 5 to 7 mph in the evening. Winds could gust as high as 16 mph.

    Low: 76 °F

    Partly Cloudy
    then Slight
    Chance
    T-storms

  • Monday

    Monday: A 20 percent chance of showers and thunderstorms before 4pm. Mostly sunny, with a high near 90. Heat index values as high as 106. South wind 7 to 13 mph, with gusts as high as 22 mph.

    High: 90 °F

    Slight Chance
    T-storms

  • Monday Night

    Monday Night: Mostly clear, with a low around 73. West southwest wind 7 to 11 mph becoming north northwest after midnight. Winds could gust as high as 20 mph.

    Low: 73 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 87. North wind 8 to 11 mph, with gusts as high as 18 mph.

    High: 87 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 62. North northeast wind 3 to 7 mph.

    Low: 62 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 85. North northeast wind 3 to 8 mph.

    High: 85 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 61.

    Low: 61 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 86.

    High: 86 °F

    Sunny

Detailed Forecast

Today
Patchy fog before 9am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 89. Heat index values as high as 105. Calm wind becoming south southwest 5 to 7 mph in the morning.
Tonight
A 20 percent chance of showers and thunderstorms after 2am. Partly cloudy, with a low around 76. Light and variable wind becoming east 5 to 7 mph in the evening. Winds could gust as high as 16 mph.
Monday
A 20 percent chance of showers and thunderstorms before 4pm. Mostly sunny, with a high near 90. Heat index values as high as 106. South wind 7 to 13 mph, with gusts as high as 22 mph.
Monday Night
Mostly clear, with a low around 73. West southwest wind 7 to 11 mph becoming north northwest after midnight. Winds could gust as high as 20 mph.
Tuesday
Mostly sunny, with a high near 87. North wind 8 to 11 mph, with gusts as high as 18 mph.
Tuesday Night
Mostly clear, with a low around 62. North northeast wind 3 to 7 mph.
Wednesday
Sunny, with a high near 85. North northeast wind 3 to 8 mph.
Wednesday Night
Clear, with a low around 61.
Thursday
Sunny, with a high near 86.
Thursday Night
Partly cloudy, with a low around 65.
Friday
Partly sunny, with a high near 85.
Friday Night
Partly cloudy, with a low around 66.
Saturday
Mostly sunny, with a high near 85.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Minonk IL
 40.92°N 89.02°W (Elev. 725 ft)
Last Update:
4:46 am CDT Jul 26, 2026
Forecast Valid:
5am CDT Jul 26, 2026-6pm CDT Aug 1, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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