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

Tropical Storm Arthur and Heavy Rainfall in the South; Severe Weather in the Midwest

An outbreak of severe thunderstorms is expected across portions of Illinois and Indiana tonight. Intense tornadoes, swaths of damaging gusts, and hail in excess of 2 inches in diameter possible. Tropical Storm Arthur will continue to produce strong winds across coastal Upper Texas and Louisiana tonight, as well as potentially life-threatening flooding across southern Louisiana into Mississippi. Read More >

Hazardous Weather Conditions

Current conditions at

Marshall County Airport (KC75)

Lat: 41.02°NLon: 89.39°WElev: 545ft.

Fair

69°F

21°C

Humidity 65%
Wind Speed W 8 mph
Barometer 29.49 in
Dewpoint 56°F (13°C)
Visibility 10.00 mi
Last update 18 Jun 12:35 am CDT
Extended Forecast for

Minonk IL

  • Overnight

    Overnight: Clear, with a low around 59. West wind around 15 mph, with gusts as high as 25 mph.

    Low: 59 °F

    Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 73. West northwest wind 11 to 15 mph, with gusts as high as 24 mph.

    High: 73 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 55. West wind 3 to 7 mph.

    Low: 55 °F

    Mostly Clear

  • Juneteenth

    Juneteenth: Sunny, with a high near 78. West northwest wind 5 to 10 mph, with gusts as high as 17 mph.

    High: 78 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 59. West northwest wind around 6 mph becoming calm.

    Low: 59 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 81. West wind 5 to 7 mph.

    High: 81 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A 30 percent chance of showers after 1am. Partly cloudy, with a low around 61. Light and variable wind becoming east around 6 mph after midnight.

    Low: 61 °F

    Partly Cloudy
    then Chance
    Showers

  • Sunday

    Sunday: Showers likely, then showers and possibly a thunderstorm after 1pm. High near 77. Chance of precipitation is 90%.

    High: 77 °F

    Showers
    Likely then
    Showers

  • Sunday Night

    Sunday Night: Showers likely, mainly before 1am. Mostly cloudy, with a low around 59. Chance of precipitation is 60%.

    Low: 59 °F

    Showers
    Likely

Detailed Forecast

Overnight
Clear, with a low around 59. West wind around 15 mph, with gusts as high as 25 mph.
Thursday
Mostly sunny, with a high near 73. West northwest wind 11 to 15 mph, with gusts as high as 24 mph.
Thursday Night
Mostly clear, with a low around 55. West wind 3 to 7 mph.
Juneteenth
Sunny, with a high near 78. West northwest wind 5 to 10 mph, with gusts as high as 17 mph.
Friday Night
Partly cloudy, with a low around 59. West northwest wind around 6 mph becoming calm.
Saturday
Mostly sunny, with a high near 81. West wind 5 to 7 mph.
Saturday Night
A 30 percent chance of showers after 1am. Partly cloudy, with a low around 61. Light and variable wind becoming east around 6 mph after midnight.
Sunday
Showers likely, then showers and possibly a thunderstorm after 1pm. High near 77. Chance of precipitation is 90%.
Sunday Night
Showers likely, mainly before 1am. Mostly cloudy, with a low around 59. Chance of precipitation is 60%.
Monday
Mostly sunny, with a high near 76.
Monday Night
Mostly clear, with a low around 55.
Tuesday
Mostly sunny, with a high near 79.
Tuesday Night
Partly cloudy, with a low around 58.
Wednesday
Mostly sunny, with a high near 80.
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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:
11:41 pm CDT Jun 17, 2026
Forecast Valid:
12am CDT Jun 18, 2026-6pm CDT Jun 24, 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