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

60°F

16°C

Humidity 86%
Wind Speed SW 14 G 26 mph
Barometer 29.73 in
Dewpoint 56°F (13°C)
Visibility 10.00 mi
Last update 7 Mar 9:35 am CST
Extended Forecast for

3 Miles WNW Castleton IL

  • Today

    Today: Cloudy, with a temperature falling to around 44 by 4pm. Breezy, with a west northwest wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 59 °F⇓

    Cloudy and
    Breezy then
    Cloudy

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 34. West northwest wind 6 to 11 mph becoming south southwest after midnight. Winds could gust as high as 21 mph.

    Low: 34 °F

    Decreasing
    Clouds

  • Sunday

    Sunday: Sunny, with a high near 64. Southwest wind 10 to 17 mph, with gusts as high as 25 mph.

    High: 64 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 45. South southwest wind around 15 mph, with gusts as high as 26 mph.

    Low: 45 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 73. Southwest wind 9 to 15 mph, with gusts as high as 24 mph.

    High: 73 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 47. Southwest wind 6 to 8 mph becoming southeast after midnight. Winds could gust as high as 15 mph.

    Low: 47 °F

    Clear

  • Tuesday

    Tuesday: Showers after noon. High near 73. South southwest wind 8 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    High: 73 °F

    Mostly Sunny
    then Showers

  • Tuesday Night

    Tuesday Night: Showers. Low around 40. Chance of precipitation is 80%.

    Low: 40 °F

    Showers

  • Wednesday

    Wednesday: A 50 percent chance of showers before noon. Cloudy, with a high near 50.

    High: 50 °F

    Chance
    Showers then
    Mostly Cloudy

Detailed Forecast

Today
Cloudy, with a temperature falling to around 44 by 4pm. Breezy, with a west northwest wind 15 to 20 mph, with gusts as high as 30 mph.
Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 34. West northwest wind 6 to 11 mph becoming south southwest after midnight. Winds could gust as high as 21 mph.
Sunday
Sunny, with a high near 64. Southwest wind 10 to 17 mph, with gusts as high as 25 mph.
Sunday Night
Clear, with a low around 45. South southwest wind around 15 mph, with gusts as high as 26 mph.
Monday
Sunny, with a high near 73. Southwest wind 9 to 15 mph, with gusts as high as 24 mph.
Monday Night
Clear, with a low around 47. Southwest wind 6 to 8 mph becoming southeast after midnight. Winds could gust as high as 15 mph.
Tuesday
Showers after noon. High near 73. South southwest wind 8 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Tuesday Night
Showers. Low around 40. Chance of precipitation is 80%.
Wednesday
A 50 percent chance of showers before noon. Cloudy, with a high near 50.
Wednesday Night
Partly cloudy, with a low around 28.
Thursday
Mostly sunny, with a high near 50.
Thursday Night
Mostly cloudy, with a low around 38.
Friday
Mostly cloudy, with a high near 59. Breezy.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WNW Castleton IL
 41.14°N 89.74°W (Elev. 728 ft)
Last Update:
9:36 am CST Mar 7, 2026
Forecast Valid:
10am CST Mar 7, 2026-6pm CDT Mar 13, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation