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

43°F

6°C

Humidity 88%
Wind Speed Calm
Barometer 29.91 in
Dewpoint 40°F (4°C)
Visibility 10.00 mi
Last update 20 Mar 1:55 am CDT
Extended Forecast for

4 Miles WNW Castleton IL

  • Overnight

    Overnight: Mostly cloudy, with a low around 43. South southwest wind 3 to 6 mph.

    Low: 43 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 73. Southwest wind 8 to 11 mph becoming north northwest in the afternoon. Winds could gust as high as 23 mph.

    High: 73 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 42. North wind 5 to 7 mph becoming light and variable.

    Low: 42 °F

    Mostly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 78. Southeast wind 5 to 11 mph becoming southwest in the afternoon. Winds could gust as high as 20 mph.

    High: 78 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 56. South southwest wind 7 to 11 mph, with gusts as high as 22 mph.

    Low: 56 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly cloudy, with a high near 74. Southwest wind 10 to 18 mph becoming north in the afternoon. Winds could gust as high as 28 mph.

    High: 74 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 33. North wind 10 to 18 mph, with gusts as high as 28 mph.

    Low: 33 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 52.

    High: 52 °F

    Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 36.

    Low: 36 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 43. South southwest wind 3 to 6 mph.
Friday
Partly sunny, with a high near 73. Southwest wind 8 to 11 mph becoming north northwest in the afternoon. Winds could gust as high as 23 mph.
Friday Night
Mostly cloudy, with a low around 42. North wind 5 to 7 mph becoming light and variable.
Saturday
Sunny, with a high near 78. Southeast wind 5 to 11 mph becoming southwest in the afternoon. Winds could gust as high as 20 mph.
Saturday Night
Mostly clear, with a low around 56. South southwest wind 7 to 11 mph, with gusts as high as 22 mph.
Sunday
Mostly cloudy, with a high near 74. Southwest wind 10 to 18 mph becoming north in the afternoon. Winds could gust as high as 28 mph.
Sunday Night
Partly cloudy, with a low around 33. North wind 10 to 18 mph, with gusts as high as 28 mph.
Monday
Sunny, with a high near 52.
Monday Night
Mostly cloudy, with a low around 36.
Tuesday
Mostly cloudy, with a high near 58.
Tuesday Night
Mostly cloudy, with a low around 39.
Wednesday
Partly sunny, with a high near 60.
Wednesday Night
Partly cloudy, with a low around 46.
Thursday
Mostly sunny, with a high near 70.
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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:
1:26 am CDT Mar 20, 2026
Forecast Valid:
2am CDT Mar 20, 2026-6pm CDT Mar 26, 2026
 
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Additional Resources

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