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.

71°F

22°C

Humidity 37%
Wind Speed N 7 mph
Barometer 29.86 in
Dewpoint 43°F (6°C)
Visibility NA
Last update 20 Mar 6:35 pm CDT
Extended Forecast for

4 Miles WNW Castleton IL

  • Tonight

    Tonight: Mostly cloudy, with a low around 43. North northwest wind 5 to 8 mph becoming east after midnight. Winds could gust as high as 16 mph.

    Low: 43 °F

    Mostly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 78. Southeast wind 5 to 13 mph becoming southwest in the afternoon. Winds could gust as high as 22 mph.

    High: 78 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 57. South southwest wind 7 to 10 mph, with gusts as high as 22 mph.

    Low: 57 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 71. Southwest wind 10 to 18 mph becoming north in the afternoon. Winds could gust as high as 28 mph.

    High: 71 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 32. North wind 9 to 17 mph, with gusts as high as 26 mph.

    Low: 32 °F

    Decreasing
    Clouds

  • Monday

    Monday: Sunny, with a high near 52. North wind 6 to 8 mph, with gusts as high as 15 mph.

    High: 52 °F

    Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 36. Light and variable wind becoming southeast around 6 mph after midnight.

    Low: 36 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 60.

    High: 60 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 38.

    Low: 38 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 43. North northwest wind 5 to 8 mph becoming east after midnight. Winds could gust as high as 16 mph.
Saturday
Sunny, with a high near 78. Southeast wind 5 to 13 mph becoming southwest in the afternoon. Winds could gust as high as 22 mph.
Saturday Night
Partly cloudy, with a low around 57. South southwest wind 7 to 10 mph, with gusts as high as 22 mph.
Sunday
Mostly cloudy, with a high near 71. Southwest wind 10 to 18 mph becoming north in the afternoon. Winds could gust as high as 28 mph.
Sunday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 32. North wind 9 to 17 mph, with gusts as high as 26 mph.
Monday
Sunny, with a high near 52. North wind 6 to 8 mph, with gusts as high as 15 mph.
Monday Night
Mostly cloudy, with a low around 36. Light and variable wind becoming southeast around 6 mph after midnight.
Tuesday
Partly sunny, with a high near 60.
Tuesday Night
Mostly cloudy, with a low around 38.
Wednesday
Mostly cloudy, with a high near 58.
Wednesday Night
Mostly cloudy, with a low around 47.
Thursday
A chance of rain. Partly sunny, with a high near 72.
Thursday Night
Mostly cloudy, with a low around 32.
Friday
Partly sunny, with a high near 47.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles WNW Castleton IL
 41.14°N 89.77°W (Elev. 676 ft)
Last Update:
6:36 pm CDT Mar 20, 2026
Forecast Valid:
6pm CDT Mar 20, 2026-6pm CDT Mar 27, 2026
 
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Additional Resources

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