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.

Overcast

27°F

-3°C

Humidity 73%
Wind Speed W 13 G 16 mph
Barometer 30.44 in
Dewpoint 19°F (-7°C)
Visibility 10.00 mi
Wind Chill16°F (-9°C)
Last update 11 Jan 4:35 pm CST
Extended Forecast for

4 Miles WNW Castleton IL

  • Tonight

    Tonight: Increasing clouds, with a low around 27. Southwest wind 8 to 13 mph, with gusts as high as 24 mph.

    Low: 27 °F

    Increasing
    Clouds

  • Monday

    Monday: Mostly cloudy, then gradually becoming sunny, with a high near 45. West southwest wind 7 to 10 mph, with gusts as high as 20 mph.

    High: 45 °F

    Decreasing
    Clouds

  • Monday Night

    Monday Night: Increasing clouds, with a low around 33. Southwest wind 6 to 10 mph, with gusts as high as 20 mph.

    Low: 33 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Partly sunny, with a high near 52. West southwest wind 11 to 15 mph, with gusts as high as 24 mph.

    High: 52 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 32. West northwest wind 11 to 15 mph, with gusts as high as 24 mph.

    Low: 32 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A 30 percent chance of snow after noon. Mostly cloudy, with a high near 37. Breezy, with a north northwest wind 15 to 22 mph, with gusts as high as 37 mph.

    High: 37 °F

    Breezy.
    Mostly Cloudy
    then Chance
    Snow

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 15. North wind 11 to 18 mph, with gusts as high as 33 mph.

    Low: 15 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 29.

    High: 29 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A 40 percent chance of snow. Mostly cloudy, with a low around 24.

    Low: 24 °F

    Chance Snow

Detailed Forecast

Tonight
Increasing clouds, with a low around 27. Southwest wind 8 to 13 mph, with gusts as high as 24 mph.
Monday
Mostly cloudy, then gradually becoming sunny, with a high near 45. West southwest wind 7 to 10 mph, with gusts as high as 20 mph.
Monday Night
Increasing clouds, with a low around 33. Southwest wind 6 to 10 mph, with gusts as high as 20 mph.
Tuesday
Partly sunny, with a high near 52. West southwest wind 11 to 15 mph, with gusts as high as 24 mph.
Tuesday Night
Mostly cloudy, with a low around 32. West northwest wind 11 to 15 mph, with gusts as high as 24 mph.
Wednesday
A 30 percent chance of snow after noon. Mostly cloudy, with a high near 37. Breezy, with a north northwest wind 15 to 22 mph, with gusts as high as 37 mph.
Wednesday Night
Partly cloudy, with a low around 15. North wind 11 to 18 mph, with gusts as high as 33 mph.
Thursday
Mostly sunny, with a high near 29.
Thursday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 24.
Friday
A 40 percent chance of snow after noon. Mostly cloudy, with a high near 36.
Friday Night
A chance of snow. Mostly cloudy, with a low around 16.
Saturday
Mostly cloudy, with a high near 23.
Saturday Night
Partly cloudy, with a low around 9.
Sunday
Mostly sunny, with a high near 24.
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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:
3:17 pm CST Jan 11, 2026
Forecast Valid:
4pm CST Jan 11, 2026-6pm CST Jan 18, 2026
 
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Additional Resources

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Chance of Precipitation