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.

Partly Cloudy

48°F

9°C

Humidity 54%
Wind Speed SW 9 mph
Barometer 30.02 in
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Wind Chill44°F (7°C)
Last update 22 Nov 4:55 pm CST
Extended Forecast for

4 Miles WNW Castleton IL

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 34. Southwest wind 6 to 11 mph becoming northwest after midnight. Winds could gust as high as 18 mph.

    Low: 34 °F

    Decreasing
    Clouds

  • Sunday

    Sunday: Patchy fog between 7am and 9am. Otherwise, sunny, with a high near 56. Northwest wind around 6 mph becoming light and variable in the afternoon.

    High: 56 °F

    Patchy Fog
    then Sunny

  • Sunday Night

    Sunday Night: Increasing clouds, with a low around 34. Calm wind becoming south around 6 mph after midnight.

    Low: 34 °F

    Increasing
    Clouds

  • Monday

    Monday: A 30 percent chance of rain after noon. Mostly cloudy, with a high near 57. South wind 6 to 10 mph, with gusts as high as 17 mph.

    High: 57 °F

    Mostly Cloudy
    then Chance
    Rain

  • Monday Night

    Monday Night: Rain. Low around 47. South southeast wind 5 to 9 mph becoming light south after midnight. Winds could gust as high as 17 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 47 °F

    Rain

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 58. Light south southwest wind becoming west southwest 5 to 10 mph in the morning. Winds could gust as high as 17 mph.

    High: 58 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 32. West wind 10 to 16 mph, with gusts as high as 26 mph.

    Low: 32 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 40. Breezy.

    High: 40 °F

    Partly Sunny
    and Breezy

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 23.

    Low: 23 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 34. Southwest wind 6 to 11 mph becoming northwest after midnight. Winds could gust as high as 18 mph.
Sunday
Patchy fog between 7am and 9am. Otherwise, sunny, with a high near 56. Northwest wind around 6 mph becoming light and variable in the afternoon.
Sunday Night
Increasing clouds, with a low around 34. Calm wind becoming south around 6 mph after midnight.
Monday
A 30 percent chance of rain after noon. Mostly cloudy, with a high near 57. South wind 6 to 10 mph, with gusts as high as 17 mph.
Monday Night
Rain. Low around 47. South southeast wind 5 to 9 mph becoming light south after midnight. Winds could gust as high as 17 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Tuesday
Mostly cloudy, with a high near 58. Light south southwest wind becoming west southwest 5 to 10 mph in the morning. Winds could gust as high as 17 mph.
Tuesday Night
Mostly cloudy, with a low around 32. West wind 10 to 16 mph, with gusts as high as 26 mph.
Wednesday
Partly sunny, with a high near 40. Breezy.
Wednesday Night
Partly cloudy, with a low around 23.
Thanksgiving Day
Mostly sunny, with a high near 37.
Thursday Night
Partly cloudy, with a low around 19.
Friday
Mostly sunny, with a high near 35.
Friday Night
Mostly cloudy, with a low around 22.
Saturday
Mostly cloudy, with a high near 40.
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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:
4:46 pm CST Nov 22, 2025
Forecast Valid:
5pm CST Nov 22, 2025-6pm CST Nov 29, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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