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Hazardous Weather Conditions
Current conditions at
Marshall County Airport (KC75)
Lat: 41.02°NLon: 89.39°WElev: 545ft.
Overcast
65°F
18°C
| Humidity | 73% |
| Wind Speed | NE 7 mph |
| Barometer | 30.08 in |
| Dewpoint | 57°F (14°C) |
| Visibility | 10.00 mi |
| Last update | 14 Oct 6:15 pm CDT |
Extended Forecast for
Castleton IL
Tonight
Low: 56 °F
Mostly Cloudy
then Chance
ShowersThursday

High: 69 °F
Showers
Thursday Night

Low: 46 °F
Showers
Likely and
BreezyFriday
High: 56 °F
Breezy.
Partly Sunny
then Chance
ShowersFriday Night

Low: 35 °F
Partly Cloudy
then Areas
FrostSaturday

High: 58 °F
Areas Frost
then SunnySaturday Night

Low: 38 °F
Clear
Sunday

High: 65 °F
Sunny
Sunday Night

Low: 43 °F
Mostly Clear
Detailed Forecast
Tonight
A chance of showers and thunderstorms. Mostly cloudy, with a low around 56. East northeast wind 8 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 40%.
Thursday
Showers, with thunderstorms also possible after 4pm. High near 69. East wind 6 to 9 mph, with gusts as high as 15 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Thursday Night
Showers and thunderstorms likely before 11pm, then showers likely between 11pm and 1am. Mostly cloudy, with a low around 46. Breezy, with a northwest wind 7 to 12 mph increasing to 15 to 20 mph after midnight. Winds could gust as high as 32 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday
A 30 percent chance of showers after 1pm. Partly sunny, with a high near 56. Breezy, with a northwest wind 18 to 23 mph, with gusts as high as 34 mph.
Friday Night
Areas of frost after 4am. Otherwise, mostly clear, with a low around 35. North wind 12 to 17 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 24 mph.
Saturday
Areas of frost before 8am. Otherwise, sunny, with a high near 58. Light and variable wind.
Saturday Night
Clear, with a low around 38. Calm wind becoming south around 6 mph after midnight.
Sunday
Sunny, with a high near 65.
Sunday Night
Mostly clear, with a low around 43.
Monday
Mostly sunny, with a high near 69.
Monday Night
Partly cloudy, with a low around 46.
Tuesday
Sunny, with a high near 72.
Tuesday Night
Mostly clear, with a low around 50.
Wednesday
Sunny, with a high near 76.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Castleton IL
41.12°N 89.71°W (Elev. 768 ft)
41.12°N 89.71°W (Elev. 768 ft)
3:36 pm CDT Oct 14, 2026
6pm CDT Oct 14, 2026-6pm CDT Oct 21, 2026



