Current conditions at
Marshall County Airport (KC75)
Lat: 41.02°NLon: 89.39°WElev: 545ft.
Overcast
40°F
4°C
| Humidity | 56% |
| Wind Speed | SE 13 G 18 mph |
| Barometer | 30.27 in |
| Dewpoint | 26°F (-3°C) |
| Visibility | 10.00 mi |
| Wind Chill | 32°F (0°C) |
| Last update | 8 Apr 1:15 am CDT |
Extended Forecast for
4 Miles WNW Castleton IL
Overnight

Low: 39 °F
Slight Chance
ShowersWednesday

High: 72 °F
Decreasing
Clouds and
BreezyWednesday Night

Low: 52 °F
Showers
LikelyThursday
High: 70 °F
Mostly Sunny
then Chance
ShowersThursday Night

Low: 49 °F
Showers
Friday

High: 61 °F
Chance
ShowersFriday Night

Low: 41 °F
Partly Cloudy
Saturday

High: 65 °F
Partly Sunny
Saturday Night

Low: 56 °F
Mostly Cloudy
Detailed Forecast
Overnight
A 20 percent chance of showers before 2am. Mostly cloudy, with a low around 39. Southeast wind around 11 mph, with gusts as high as 24 mph.
Wednesday
Mostly cloudy, then gradually becoming sunny, with a high near 72. Breezy, with a south wind 14 to 22 mph, with gusts as high as 33 mph.
Wednesday Night
A chance of showers and thunderstorms before 2am, then showers likely and possibly a thunderstorm between 2am and 4am, then a chance of showers and thunderstorms after 4am. Increasing clouds, with a low around 52. South wind 10 to 18 mph, with gusts as high as 29 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday
A 30 percent chance of showers after 1pm. Mostly sunny, with a high near 70. West wind around 7 mph, with gusts as high as 15 mph.
Thursday Night
Showers likely and possibly a thunderstorm, then showers after 10pm. Low around 49. Light and variable wind becoming east southeast 5 to 7 mph in the evening. Winds could gust as high as 16 mph. Chance of precipitation is 80%. New precipitation amounts between a half and three quarters of an inch possible.
Friday
A 40 percent chance of showers before 1pm. Mostly cloudy, with a high near 61. North wind 7 to 9 mph, with gusts as high as 16 mph.
Friday Night
Partly cloudy, with a low around 41. North northeast wind around 6 mph becoming east after midnight.
Saturday
Partly sunny, with a high near 65.
Saturday Night
Mostly cloudy, with a low around 56.
Sunday
A 30 percent chance of showers after 1pm. Mostly cloudy, with a high near 78. Breezy.
Sunday Night
Showers likely. Mostly cloudy, with a low around 64.
Monday
A chance of showers. Mostly cloudy, with a high near 80. Breezy.
Monday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 58.
Tuesday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 71.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
4 Miles WNW Castleton IL
41.14°N 89.77°W (Elev. 676 ft)
41.14°N 89.77°W (Elev. 676 ft)
1:26 am CDT Apr 8, 2026
1am CDT Apr 8, 2026-6pm CDT Apr 14, 2026


