Hazardous Weather Conditions
Current conditions at
Marshall County Airport (KC75)
Lat: 41.02°NLon: 89.39°WElev: 545ft.
Overcast
75°F
24°C
| Humidity | 89% |
| Wind Speed | E 7 mph |
| Barometer | 29.93 in |
| Dewpoint | 72°F (22°C) |
| Visibility | 10.00 mi |
| Last update | 13 Aug 7:55 pm CDT |
Extended Forecast for
4 Miles WNW Castleton IL
Flood Watch August 13, 08:14pm until August 14, 10:00am
NOW until 10:00am Fri
Flood Watch
Tonight
Low: 68 °F
Chance
T-storms then
Heavy RainFriday
High: 84 °F
Heavy Rain
then Slight
Chance
ShowersFriday Night
Low: 72 °F
Chance
Showers then
Chance
T-stormsSaturday

High: 89 °F
Chance
ShowersSaturday Night
Low: 72 °F
Mostly Cloudy
then Chance
ShowersSunday
High: 85 °F
Chance
T-storms then
Showers
LikelySunday Night

Low: 66 °F
Mostly Cloudy
Monday

High: 80 °F
Mostly Sunny
Detailed Forecast
Tonight
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 1am. Some of the storms could produce heavy rainfall. Low around 68. East wind 8 to 11 mph, with gusts as high as 18 mph. Chance of precipitation is 90%. New rainfall amounts between 1 and 2 inches possible.
Friday
Showers and thunderstorms likely before noon, then a slight chance of showers between noon and 1pm. Some of the storms could produce heavy rainfall. Cloudy, then gradually becoming mostly sunny, with a high near 84. East wind around 8 mph, with gusts as high as 15 mph. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.
Friday Night
A 50 percent chance of showers and thunderstorms after 10pm. Partly cloudy, with a low around 72. East wind 8 to 11 mph, with gusts as high as 18 mph.
Saturday
A 50 percent chance of showers before 1pm. Partly sunny, with a high near 89. Heat index values as high as 102. South southeast wind 8 to 11 mph becoming west southwest in the afternoon. Winds could gust as high as 18 mph.
Saturday Night
A 50 percent chance of showers after 1am. Mostly cloudy, with a low around 72. West wind 3 to 7 mph.
Sunday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 85. West northwest wind 3 to 8 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday Night
Mostly cloudy, with a low around 66. North northwest wind 3 to 7 mph.
Monday
Mostly sunny, with a high near 80.
Monday Night
Mostly clear, with a low around 63.
Tuesday
Mostly sunny, with a high near 81.
Tuesday Night
Partly cloudy, with a low around 67.
Wednesday
Partly sunny, with a high near 84.
Wednesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 65.
Thursday
Partly sunny, with a high near 80.
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)
8:06 pm CDT Aug 13, 2026
8pm CDT Aug 13, 2026-6pm CDT Aug 20, 2026



