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.

Fair

6°F

-14°C

Humidity 62%
Wind Speed N 6 mph
Barometer 30.49 in
Dewpoint -4°F (-20°C)
Visibility 10.00 mi
Wind Chill-5°F (-21°C)
Last update 31 Jan 1:15 am CST
Extended Forecast for

4 Miles WNW Castleton IL

  • Overnight

    Overnight: Partly cloudy, with a low around 5. Wind chill values between -6 and -11. Northwest wind 9 to 11 mph, with gusts as high as 22 mph.

    Low: 5 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 24. Wind chill values between -10 and zero. North northwest wind 6 to 11 mph, with gusts as high as 20 mph.

    High: 24 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 6. Light and variable wind.

    Low: 6 °F

    Mostly Clear

  • Sunday

    Sunday: Partly sunny, with a high near 25. Wind chill values between -1 and 9. Light south southwest wind increasing to 6 to 11 mph in the morning. Winds could gust as high as 18 mph.

    High: 25 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: A 40 percent chance of snow before midnight. Mostly cloudy, with a low around 18. South wind around 7 mph becoming west after midnight. Winds could gust as high as 16 mph.

    Low: 18 °F

    Chance Snow
    then Mostly
    Cloudy

  • Monday

    Monday: Partly sunny, with a high near 33. West northwest wind 3 to 8 mph.

    High: 33 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 21. Calm wind becoming east northeast around 5 mph after midnight.

    Low: 21 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A 30 percent chance of snow after noon. Mostly cloudy, with a high near 31.

    High: 31 °F

    Mostly Cloudy
    then Chance
    Snow

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 17.

    Low: 17 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Partly cloudy, with a low around 5. Wind chill values between -6 and -11. Northwest wind 9 to 11 mph, with gusts as high as 22 mph.
Saturday
Sunny, with a high near 24. Wind chill values between -10 and zero. North northwest wind 6 to 11 mph, with gusts as high as 20 mph.
Saturday Night
Mostly clear, with a low around 6. Light and variable wind.
Sunday
Partly sunny, with a high near 25. Wind chill values between -1 and 9. Light south southwest wind increasing to 6 to 11 mph in the morning. Winds could gust as high as 18 mph.
Sunday Night
A 40 percent chance of snow before midnight. Mostly cloudy, with a low around 18. South wind around 7 mph becoming west after midnight. Winds could gust as high as 16 mph.
Monday
Partly sunny, with a high near 33. West northwest wind 3 to 8 mph.
Monday Night
Mostly cloudy, with a low around 21. Calm wind becoming east northeast around 5 mph after midnight.
Tuesday
A 30 percent chance of snow after noon. Mostly cloudy, with a high near 31.
Tuesday Night
Mostly cloudy, with a low around 17.
Wednesday
Partly sunny, with a high near 29.
Wednesday Night
Partly cloudy, with a low around 13.
Thursday
Partly sunny, with a high near 33.
Thursday Night
Mostly cloudy, with a low around 26.
Friday
Partly sunny, with a high near 36.
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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:
12:36 am CST Jan 31, 2026
Forecast Valid:
1am CST Jan 31, 2026-6pm CST Feb 6, 2026
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation