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Current conditions at

Marshall County Airport (KC75)

Lat: 41.02°NLon: 89.39°WElev: 545ft.

Fair

63°F

17°C

Humidity 58%
Wind Speed SE 8 mph
Barometer 30.02 in
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Last update 10 Oct 9:35 pm CDT
Extended Forecast for

4 Miles WNW Castleton IL

  • Tonight

    Tonight: Mostly clear, with a low around 53. South southeast wind 5 to 9 mph becoming calm after midnight. Winds could gust as high as 17 mph.

    Low: 53 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 83. Calm wind becoming south around 6 mph in the morning.

    High: 83 °F

    Sunny

  • Sunday Night

    Sunday Night: Increasing clouds, with a low around 63. South wind 5 to 8 mph, with gusts as high as 16 mph.

    Low: 63 °F

    Increasing
    Clouds

  • Columbus Day

    Columbus Day: Sunny, with a high near 88. Southwest wind 8 to 14 mph, with gusts as high as 23 mph.

    High: 88 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 68. South southwest wind 10 to 13 mph, with gusts as high as 22 mph.

    Low: 68 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 83. Southwest wind 8 to 13 mph becoming west northwest in the afternoon. Winds could gust as high as 20 mph.

    High: 83 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A 40 percent chance of showers after 1am. Mostly clear, with a low around 59. North northeast wind around 5 mph.

    Low: 59 °F

    Mostly Clear
    then Chance
    Showers

  • Wednesday

    Wednesday: A 50 percent chance of showers. Partly sunny, with a high near 74.

    High: 74 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A 50 percent chance of showers. Mostly cloudy, with a low around 56.

    Low: 56 °F

    Chance
    Showers

Detailed Forecast

Tonight
Mostly clear, with a low around 53. South southeast wind 5 to 9 mph becoming calm after midnight. Winds could gust as high as 17 mph.
Sunday
Sunny, with a high near 83. Calm wind becoming south around 6 mph in the morning.
Sunday Night
Increasing clouds, with a low around 63. South wind 5 to 8 mph, with gusts as high as 16 mph.
Columbus Day
Sunny, with a high near 88. Southwest wind 8 to 14 mph, with gusts as high as 23 mph.
Monday Night
Mostly clear, with a low around 68. South southwest wind 10 to 13 mph, with gusts as high as 22 mph.
Tuesday
Sunny, with a high near 83. Southwest wind 8 to 13 mph becoming west northwest in the afternoon. Winds could gust as high as 20 mph.
Tuesday Night
A 40 percent chance of showers after 1am. Mostly clear, with a low around 59. North northeast wind around 5 mph.
Wednesday
A 50 percent chance of showers. Partly sunny, with a high near 74.
Wednesday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 56.
Thursday
Showers likely, mainly before 1pm. Mostly cloudy, with a high near 71. Chance of precipitation is 60%.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 50.
Friday
Partly sunny, with a high near 65. Breezy.
Friday Night
Partly cloudy, with a low around 41.
Saturday
Mostly sunny, with a high near 59.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles WNW Castleton IL
 41.14°N 89.77°W (Elev. 676 ft)
Last Update:
9:36 pm CDT Oct 10, 2026
Forecast Valid:
9pm CDT Oct 10, 2026-6pm CDT Oct 17, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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