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

34°F

1°C

Humidity 84%
Wind Speed Calm
Barometer 30.03 in
Dewpoint 29°F (-2°C)
Visibility 10.00 mi
Last update 1 Nov 6:35 am CDT
Extended Forecast for

4 Miles WNW Castleton IL

  • Today

    Today: Isolated showers after 1pm. Increasing clouds, with a high near 48. West wind 3 to 6 mph. Chance of precipitation is 20%.

    High: 48 °F

    Mostly Cloudy
    then Isolated
    Showers

  • Tonight

    Tonight: Cloudy, then gradually becoming partly cloudy, with a low around 29. Light north northwest wind.

    Low: 29 °F

    Decreasing
    Clouds

  • Sunday

    Sunday: Sunny, with a high near 53. Calm wind becoming south southwest 5 to 9 mph in the afternoon. Winds could gust as high as 15 mph.

    High: 53 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 38. South southwest wind 7 to 10 mph, with gusts as high as 20 mph.

    Low: 38 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 62. Southwest wind around 10 mph becoming west northwest in the afternoon. Winds could gust as high as 20 mph.

    High: 62 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 36. West northwest wind around 6 mph becoming calm in the evening.

    Low: 36 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 64. Light south southeast wind becoming south 6 to 11 mph in the morning. Winds could gust as high as 17 mph.

    High: 64 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 46.

    Low: 46 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 65.

    High: 65 °F

    Sunny

Detailed Forecast

Today
Isolated showers after 1pm. Increasing clouds, with a high near 48. West wind 3 to 6 mph. Chance of precipitation is 20%.
Tonight
Cloudy, then gradually becoming partly cloudy, with a low around 29. Light north northwest wind.
Sunday
Sunny, with a high near 53. Calm wind becoming south southwest 5 to 9 mph in the afternoon. Winds could gust as high as 15 mph.
Sunday Night
Mostly clear, with a low around 38. South southwest wind 7 to 10 mph, with gusts as high as 20 mph.
Monday
Sunny, with a high near 62. Southwest wind around 10 mph becoming west northwest in the afternoon. Winds could gust as high as 20 mph.
Monday Night
Mostly clear, with a low around 36. West northwest wind around 6 mph becoming calm in the evening.
Tuesday
Mostly sunny, with a high near 64. Light south southeast wind becoming south 6 to 11 mph in the morning. Winds could gust as high as 17 mph.
Tuesday Night
Mostly clear, with a low around 46.
Wednesday
Sunny, with a high near 65.
Wednesday Night
Mostly clear, with a low around 36.
Thursday
Mostly sunny, with a high near 64.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 48.
Friday
A chance of showers. Partly sunny, with a high near 62.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles WNW Castleton IL
 41.14°N 89.77°W (Elev. 676 ft)
Last Update:
5:21 am CDT Nov 1, 2025
Forecast Valid:
6am CDT Nov 1, 2025-6pm CST Nov 7, 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