Current conditions at

Marshall County Airport (KC75)

Lat: 41.02°NLon: 89.39°WElev: 545ft.

Fog

37°F

3°C

Humidity 97%
Wind Speed S 5 mph
Barometer 29.97 in
Dewpoint 37°F (3°C)
Visibility 0.50 mi
Wind Chill33°F (1°C)
Last update 16 Feb 7:15 am CST
Extended Forecast for

Castleton IL

Dense Fog Advisory February 16, 07:31am until February 16, 09:00am
Click here for hazard details and duration
...
  •  
    Dense Fog Advisory February 16, 07:31am until February 16, 09:00am

    NOW until 9:00am Mon

    Dense Fog Advisory

  • Washington's Birthday

    High: 64 °F

    Patchy Fog
    then Mostly
    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 42. South wind around 8 mph, with gusts as high as 16 mph.

    Low: 42 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 61. South southeast wind 7 to 12 mph increasing to 13 to 18 mph in the afternoon. Winds could gust as high as 28 mph.

    High: 61 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: A 50 percent chance of rain.  Mostly cloudy, with a low around 52. Breezy, with a south wind 18 to 20 mph, with gusts as high as 30 mph.

    Low: 52 °F

    Chance Rain
    and Breezy

  • Wednesday

    Wednesday: Sunny, with a high near 66. Breezy, with a west wind 13 to 21 mph, with gusts as high as 30 mph.

    High: 66 °F

    Sunny and
    Breezy

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 39. West southwest wind 6 to 10 mph becoming east northeast after midnight. Winds could gust as high as 17 mph.

    Low: 39 °F

    Partly Cloudy

  • Thursday

    Thursday: A 50 percent chance of rain after noon.  Partly sunny, with a high near 62. East wind 7 to 14 mph, with gusts as high as 21 mph.

    High: 62 °F

    Mostly Sunny
    then Chance
    Rain

  • Thursday Night

    Thursday Night: A 50 percent chance of rain.  Partly cloudy, with a low around 34.

    Low: 34 °F

    Chance Rain

Detailed Forecast

Washington's Birthday
Patchy fog before 9am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 64. Southwest wind 9 to 16 mph, with gusts as high as 28 mph.
Tonight
Increasing clouds, with a low around 42. South wind around 8 mph, with gusts as high as 16 mph.
Tuesday
Mostly cloudy, with a high near 61. South southeast wind 7 to 12 mph increasing to 13 to 18 mph in the afternoon. Winds could gust as high as 28 mph.
Tuesday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 52. Breezy, with a south wind 18 to 20 mph, with gusts as high as 30 mph.
Wednesday
Sunny, with a high near 66. Breezy, with a west wind 13 to 21 mph, with gusts as high as 30 mph.
Wednesday Night
Partly cloudy, with a low around 39. West southwest wind 6 to 10 mph becoming east northeast after midnight. Winds could gust as high as 17 mph.
Thursday
A 50 percent chance of rain after noon. Partly sunny, with a high near 62. East wind 7 to 14 mph, with gusts as high as 21 mph.
Thursday Night
A 50 percent chance of rain. Partly cloudy, with a low around 34.
Friday
Partly sunny, with a high near 44.
Friday Night
Mostly cloudy, with a low around 27.
Saturday
Partly sunny, with a high near 42.
Saturday Night
A chance of rain and snow. Partly cloudy, with a low around 23.
Sunday
Mostly sunny, with a high near 34.
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ABOUT THIS FORECAST

 
Point Forecast:
Castleton IL
 41.1°N 89.68°W (Elev. 820 ft)
6:36 am CST Feb 16, 2026
7am CST Feb 16, 2026-6pm CST Feb 22, 2026
 
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Additional Resources

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