Current conditions at

Marshall County Airport (KC75)

Lat: 41.02°NLon: 89.39°WElev: 545ft.

Fair

32°F

0°C

Humidity 69%
Wind Speed Calm
Barometer 29.65 in
Dewpoint 23°F (-5°C)
Visibility 10.00 mi
Last update 25 Feb 1:15 am CST
Extended Forecast for

4 Miles WNW Castleton IL

  • Overnight

    Overnight: Mostly clear, with a low around 24. West northwest wind around 9 mph, with gusts as high as 21 mph.

    Low: 24 °F

    Mostly Clear

  • Wednesday

    Wednesday: Increasing clouds, with a high near 41. West northwest wind 8 to 13 mph, with gusts as high as 23 mph.

    High: 41 °F

    Increasing
    Clouds

  • Wednesday Night

    Wednesday Night: Snow likely between 9pm and 3am.  Mostly cloudy, with a low around 22. Northwest wind around 6 mph becoming calm  in the evening.  Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    Low: 22 °F

    Snow Likely

  • Thursday

    Thursday: Mostly sunny, with a high near 47. Light and variable wind becoming south southwest 5 to 10 mph in the morning. Winds could gust as high as 20 mph.

    High: 47 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 29. South southwest wind around 6 mph, with gusts as high as 16 mph.

    Low: 29 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 64. South southwest wind 7 to 12 mph increasing to 13 to 18 mph in the afternoon. Winds could gust as high as 28 mph.

    High: 64 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 30. West southwest wind 7 to 10 mph becoming north after midnight. Winds could gust as high as 20 mph.

    Low: 30 °F

    Mostly Clear

  • Saturday

    Saturday: A 30 percent chance of snow after noon.  Partly sunny, with a high near 44.

    High: 44 °F

    Partly Sunny
    then Chance
    Snow

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 20.

    Low: 20 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around 24. West northwest wind around 9 mph, with gusts as high as 21 mph.
Wednesday
Increasing clouds, with a high near 41. West northwest wind 8 to 13 mph, with gusts as high as 23 mph.
Wednesday Night
Snow likely between 9pm and 3am. Mostly cloudy, with a low around 22. Northwest wind around 6 mph becoming calm in the evening. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Thursday
Mostly sunny, with a high near 47. Light and variable wind becoming south southwest 5 to 10 mph in the morning. Winds could gust as high as 20 mph.
Thursday Night
Mostly clear, with a low around 29. South southwest wind around 6 mph, with gusts as high as 16 mph.
Friday
Sunny, with a high near 64. South southwest wind 7 to 12 mph increasing to 13 to 18 mph in the afternoon. Winds could gust as high as 28 mph.
Friday Night
Mostly clear, with a low around 30. West southwest wind 7 to 10 mph becoming north after midnight. Winds could gust as high as 20 mph.
Saturday
A 30 percent chance of snow after noon. Partly sunny, with a high near 44.
Saturday Night
Partly cloudy, with a low around 20.
Sunday
A 30 percent chance of snow after noon. Mostly cloudy, with a high near 36.
Sunday Night
A chance of snow. Mostly cloudy, with a low around 22.
Monday
Mostly cloudy, with a high near 35.
Monday Night
A chance of snow. Mostly cloudy, with a low around 21.
Tuesday
A chance of rain and snow. Partly sunny, with a high near 38.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles WNW Castleton IL
 41.14°N 89.77°W (Elev. 676 ft)
12:36 am CST Feb 25, 2026
1am CST Feb 25, 2026-6pm CST Mar 3, 2026
 
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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