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.

Fair

36°F

2°C

Humidity 58%
Wind Speed SW 8 mph
Barometer 30.00 in
Dewpoint 23°F (-5°C)
Visibility 10.00 mi
Wind Chill30°F (-1°C)
Last update 18 Mar 10:35 am CDT
Extended Forecast for

4 Miles WNW Castleton IL

  • Today

    Today: Mostly sunny, with a high near 45. West southwest wind 7 to 10 mph, with gusts as high as 20 mph.

    High: 45 °F

    Mostly Sunny

  • Tonight

    Tonight: A 20 percent chance of rain after 4am. Mostly cloudy, with a low around 34. Calm wind becoming south southeast around 5 mph after midnight.

    Low: 34 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Thursday

    Thursday: A 10 percent chance of rain before 7am. Mostly cloudy, then gradually becoming sunny, with a high near 58. Light and variable wind becoming north northeast 5 to 7 mph in the afternoon.

    High: 58 °F

    Slight Chance
    Rain then
    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 41. North northeast wind around 5 mph becoming calm in the evening.

    Low: 41 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 70. South southwest wind 5 to 10 mph becoming west in the afternoon. Winds could gust as high as 20 mph.

    High: 70 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 45. West northwest wind around 6 mph becoming north northeast after midnight.

    Low: 45 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 75. South southeast wind 5 to 10 mph becoming southwest in the afternoon. Winds could gust as high as 16 mph.

    High: 75 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 49.

    Low: 49 °F

    Mostly Clear

  • Sunday

    Sunday: Partly sunny, with a high near 66.

    High: 66 °F

    Partly Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 45. West southwest wind 7 to 10 mph, with gusts as high as 20 mph.
Tonight
A 20 percent chance of rain after 4am. Mostly cloudy, with a low around 34. Calm wind becoming south southeast around 5 mph after midnight.
Thursday
A 10 percent chance of rain before 7am. Mostly cloudy, then gradually becoming sunny, with a high near 58. Light and variable wind becoming north northeast 5 to 7 mph in the afternoon.
Thursday Night
Mostly cloudy, with a low around 41. North northeast wind around 5 mph becoming calm in the evening.
Friday
Partly sunny, with a high near 70. South southwest wind 5 to 10 mph becoming west in the afternoon. Winds could gust as high as 20 mph.
Friday Night
Mostly cloudy, with a low around 45. West northwest wind around 6 mph becoming north northeast after midnight.
Saturday
Mostly sunny, with a high near 75. South southeast wind 5 to 10 mph becoming southwest in the afternoon. Winds could gust as high as 16 mph.
Saturday Night
Mostly clear, with a low around 49.
Sunday
Partly sunny, with a high near 66.
Sunday Night
Mostly cloudy, with a low around 29.
Monday
Mostly cloudy, with a high near 49.
Monday Night
Mostly cloudy, with a low around 29.
Tuesday
Mostly cloudy, with a high near 55.
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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:
7:36 am CDT Mar 18, 2026
Forecast Valid:
10am CDT Mar 18, 2026-6pm CDT Mar 24, 2026
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation