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

Marshall County Airport (KC75)

Lat: 41.02°NLon: 89.39°WElev: 545ft.

Fair

76°F

24°C

Humidity 53%
Wind Speed Calm
Barometer 30.15 in
Dewpoint 58°F (14°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 2 Oct 6:35 pm CDT
Extended Forecast for

3 Miles W Castleton IL

  • Tonight

    Tonight: Mostly clear, with a low around 63. South southeast wind 3 to 5 mph.

    Low: 63 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 90. South southwest wind 3 to 6 mph.

    High: 90 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 64. South wind around 6 mph.

    Low: 64 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 90. South wind 6 to 15 mph, with gusts as high as 20 mph.

    High: 90 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 61. South wind around 9 mph, with gusts as high as 17 mph.

    Low: 61 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 87. South southwest wind 9 to 18 mph, with gusts as high as 26 mph.

    High: 87 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 62. South wind 8 to 11 mph, with gusts as high as 20 mph.

    Low: 62 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 84.

    High: 84 °F

    Sunny

  • Monday Night

    Monday Night: A 40 percent chance of showers after 1am. Partly cloudy, with a low around 56.

    Low: 56 °F

    Partly Cloudy
    then Chance
    Showers

Detailed Forecast

Tonight
Mostly clear, with a low around 63. South southeast wind 3 to 5 mph.
Friday
Mostly sunny, with a high near 90. South southwest wind 3 to 6 mph.
Friday Night
Mostly clear, with a low around 64. South wind around 6 mph.
Saturday
Sunny, with a high near 90. South wind 6 to 15 mph, with gusts as high as 20 mph.
Saturday Night
Clear, with a low around 61. South wind around 9 mph, with gusts as high as 17 mph.
Sunday
Sunny, with a high near 87. South southwest wind 9 to 18 mph, with gusts as high as 26 mph.
Sunday Night
Mostly clear, with a low around 62. South wind 8 to 11 mph, with gusts as high as 20 mph.
Monday
Sunny, with a high near 84.
Monday Night
A 40 percent chance of showers after 1am. Partly cloudy, with a low around 56.
Tuesday
A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 76. Chance of precipitation is 50%.
Tuesday Night
Partly cloudy, with a low around 48.
Wednesday
Sunny, with a high near 69.
Wednesday Night
Mostly clear, with a low around 42.
Thursday
Sunny, with a high near 70.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles W Castleton IL
 41.12°N 89.74°W (Elev. 725 ft)
Last Update:
6:36 pm CDT Oct 2, 2025
Forecast Valid:
6pm CDT Oct 2, 2025-6pm CDT Oct 9, 2025
 
Forecast Discussion
 
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Additional Resources

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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