National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Marshall County Airport (KC75)

Lat: 41.02°NLon: 89.39°WElev: 545ft.

Overcast

61°F

16°C

Humidity 28%
Wind Speed SW 10 G 17 mph
Barometer 30.11 in
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Last update 29 Mar 1:55 pm CDT
Extended Forecast for

4 Miles WNW Castleton IL

  • This Afternoon

    This Afternoon: Cloudy, with a high near 63. South wind around 15 mph, with gusts as high as 25 mph.

    High: 63 °F

    Cloudy

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 52. South wind 8 to 10 mph, with gusts as high as 20 mph.

    Low: 52 °F

    Decreasing
    Clouds

  • Monday

    Monday: Sunny, with a high near 81. Southwest wind 8 to 14 mph, with gusts as high as 21 mph.

    High: 81 °F

    Sunny

  • Monday Night

    Monday Night: A 40 percent chance of showers and thunderstorms after 1am. Increasing clouds, with a low around 64. South southwest wind 10 to 16 mph, with gusts as high as 28 mph.

    Low: 64 °F

    Partly Cloudy
    then Chance
    T-storms

  • Tuesday

    Tuesday: A chance of showers, then showers and possibly a thunderstorm after 1pm. High near 80. Breezy, with a south southwest wind 17 to 22 mph, with gusts as high as 36 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 80 °F

    Breezy.
    Chance
    Showers then
    T-storms

  • Tuesday Night

    Tuesday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers. Mostly cloudy, with a low around 43. West wind 13 to 15 mph becoming north northeast after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 43 °F

    Showers
    Likely

  • Wednesday

    Wednesday: A 40 percent chance of showers. Mostly cloudy, with a high near 49. East northeast wind 13 to 16 mph, with gusts as high as 24 mph.

    High: 49 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Showers. Low around 38. Breezy. Chance of precipitation is 80%.

    Low: 38 °F

    Showers and
    Breezy

  • Thursday

    Thursday: Showers likely. Cloudy, with a high near 54. Chance of precipitation is 70%.

    High: 54 °F

    Showers
    Likely

Detailed Forecast

This Afternoon
Cloudy, with a high near 63. South wind around 15 mph, with gusts as high as 25 mph.
Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 52. South wind 8 to 10 mph, with gusts as high as 20 mph.
Monday
Sunny, with a high near 81. Southwest wind 8 to 14 mph, with gusts as high as 21 mph.
Monday Night
A 40 percent chance of showers and thunderstorms after 1am. Increasing clouds, with a low around 64. South southwest wind 10 to 16 mph, with gusts as high as 28 mph.
Tuesday
A chance of showers, then showers and possibly a thunderstorm after 1pm. High near 80. Breezy, with a south southwest wind 17 to 22 mph, with gusts as high as 36 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers. Mostly cloudy, with a low around 43. West wind 13 to 15 mph becoming north northeast after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday
A 40 percent chance of showers. Mostly cloudy, with a high near 49. East northeast wind 13 to 16 mph, with gusts as high as 24 mph.
Wednesday Night
Showers. Low around 38. Breezy. Chance of precipitation is 80%.
Thursday
Showers likely. Cloudy, with a high near 54. Chance of precipitation is 70%.
Thursday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 39.
Friday
A chance of showers. Mostly cloudy, with a high near 64.
Friday Night
A chance of showers. Mostly cloudy, with a low around 48.
Saturday
Showers likely. Mostly cloudy, with a high near 66.
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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:
1:56 pm CDT Mar 29, 2026
Forecast Valid:
2pm CDT Mar 29, 2026-6pm CDT Apr 4, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation