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

65°F

18°C

Humidity 30%
Wind Speed SW 13 G 17 mph
Barometer 29.90 in
Dewpoint 33°F (1°C)
Visibility 10.00 mi
Last update 16 Feb 3:35 pm CST
Extended Forecast for

4 Miles WNW Castleton IL

  • Washington's Birthday

    Washington's Birthday: Sunny, with a high near 68. South southwest wind 10 to 15 mph, with gusts as high as 23 mph.

    High: 68 °F

    Sunny

  • Tonight

    Tonight: Patchy fog after 2am. Otherwise, increasing clouds, with a low around 42. South wind 6 to 8 mph, with gusts as high as 16 mph.

    Low: 42 °F

    Partly Cloudy
    then Patchy
    Fog

  • Tuesday

    Tuesday: Patchy fog before 10am. Otherwise, cloudy, with a high near 61. South southeast wind 7 to 16 mph, with gusts as high as 30 mph.

    High: 61 °F

    Patchy Fog
    then Cloudy

  • Tuesday Night

    Tuesday Night: A 50 percent chance of rain. Mostly cloudy, with a low around 50. South wind 16 to 18 mph, with gusts as high as 30 mph.

    Low: 50 °F

    Chance Rain

  • Wednesday

    Wednesday: Sunny, with a high near 66. Breezy, with a west wind 13 to 20 mph, with gusts as high as 29 mph.

    High: 66 °F

    Sunny and
    Breezy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 41. West southwest wind 5 to 9 mph becoming east after midnight. Winds could gust as high as 17 mph.

    Low: 41 °F

    Mostly Cloudy

  • Thursday

    Thursday: Rain likely after noon. Partly sunny, with a high near 66. East wind 6 to 14 mph becoming south southeast in the afternoon. Winds could gust as high as 22 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 66 °F

    Partly Sunny
    then Rain
    Likely

  • Thursday Night

    Thursday Night: Rain likely, mainly before midnight. Partly cloudy, with a low around 34. Chance of precipitation is 60%.

    Low: 34 °F

    Rain Likely
    then Chance
    Rain

  • Friday

    Friday: Partly sunny, with a high near 45.

    High: 45 °F

    Partly Sunny

Detailed Forecast

Washington's Birthday
Sunny, with a high near 68. South southwest wind 10 to 15 mph, with gusts as high as 23 mph.
Tonight
Patchy fog after 2am. Otherwise, increasing clouds, with a low around 42. South wind 6 to 8 mph, with gusts as high as 16 mph.
Tuesday
Patchy fog before 10am. Otherwise, cloudy, with a high near 61. South southeast wind 7 to 16 mph, with gusts as high as 30 mph.
Tuesday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 50. South wind 16 to 18 mph, with gusts as high as 30 mph.
Wednesday
Sunny, with a high near 66. Breezy, with a west wind 13 to 20 mph, with gusts as high as 29 mph.
Wednesday Night
Mostly cloudy, with a low around 41. West southwest wind 5 to 9 mph becoming east after midnight. Winds could gust as high as 17 mph.
Thursday
Rain likely after noon. Partly sunny, with a high near 66. East wind 6 to 14 mph becoming south southeast in the afternoon. Winds could gust as high as 22 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday Night
Rain likely, mainly before midnight. Partly cloudy, with a low around 34. Chance of precipitation is 60%.
Friday
Partly sunny, with a high near 45.
Friday Night
Partly cloudy, with a low around 25.
Saturday
Partly sunny, with a high near 43.
Saturday Night
Mostly cloudy, with a low around 24.
Sunday
Mostly sunny, with a high near 37.
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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:
3:36 pm CST Feb 16, 2026
Forecast Valid:
3pm CST Feb 16, 2026-6pm CST Feb 22, 2026
 
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Additional Resources

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Chance of Precipitation