Hazardous Weather Conditions
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 Chill | 33°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
NOW until 9:00am Mon
Dense Fog Advisory
Washington's Birthday
High: 64 °F
Patchy Fog
then Mostly
SunnyTonight

Low: 42 °F
Increasing
CloudsTuesday

High: 61 °F
Mostly Cloudy
Tuesday Night

Low: 52 °F
Chance Rain
and BreezyWednesday

High: 66 °F
Sunny and
BreezyWednesday Night

Low: 39 °F
Partly Cloudy
Thursday
High: 62 °F
Mostly Sunny
then Chance
RainThursday Night

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.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Castleton IL
41.1°N 89.68°W (Elev. 820 ft)
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



