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

76°F

24°C

Humidity 30%
Wind Speed NW 9 G 16 mph
Barometer 29.80 in
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Heat Index77°F (25°C)
Last update 20 Mar 2:35 pm CDT
Extended Forecast for

5 Miles NW Castleton IL

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 72. Northwest wind around 10 mph, with gusts as high as 18 mph.

    High: 72 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 43. North wind around 6 mph becoming light and variable.

    Low: 43 °F

    Mostly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 77. East southeast wind 5 to 10 mph becoming southwest in the afternoon. Winds could gust as high as 18 mph.

    High: 77 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 57. South southwest wind 7 to 11 mph, with gusts as high as 22 mph.

    Low: 57 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 70. Southwest wind 10 to 18 mph becoming north in the afternoon. Winds could gust as high as 28 mph.

    High: 70 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 32. North wind 10 to 17 mph, with gusts as high as 26 mph.

    Low: 32 °F

    Decreasing
    Clouds

  • Monday

    Monday: Sunny, with a high near 52. North wind 7 to 9 mph, with gusts as high as 15 mph.

    High: 52 °F

    Sunny

  • Monday Night

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

    Low: 36 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 59.

    High: 59 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 72. Northwest wind around 10 mph, with gusts as high as 18 mph.
Tonight
Mostly cloudy, with a low around 43. North wind around 6 mph becoming light and variable.
Saturday
Sunny, with a high near 77. East southeast wind 5 to 10 mph becoming southwest in the afternoon. Winds could gust as high as 18 mph.
Saturday Night
Partly cloudy, with a low around 57. South southwest wind 7 to 11 mph, with gusts as high as 22 mph.
Sunday
Mostly cloudy, with a high near 70. Southwest wind 10 to 18 mph becoming north in the afternoon. Winds could gust as high as 28 mph.
Sunday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 32. North wind 10 to 17 mph, with gusts as high as 26 mph.
Monday
Sunny, with a high near 52. North wind 7 to 9 mph, with gusts as high as 15 mph.
Monday Night
Mostly cloudy, with a low around 36.
Tuesday
Partly sunny, with a high near 59.
Tuesday Night
Mostly cloudy, with a low around 38.
Wednesday
Mostly cloudy, with a high near 58.
Wednesday Night
Mostly cloudy, with a low around 47.
Thursday
A chance of rain. Partly sunny, with a high near 72.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles NW Castleton IL
 41.19°N 89.76°W (Elev. 751 ft)
Last Update:
1:26 pm CDT Mar 20, 2026
Forecast Valid:
2pm CDT Mar 20, 2026-6pm CDT Mar 26, 2026
 
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