National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Marshall County Airport (KC75)

Lat: 41.02°NLon: 89.39°WElev: 545ft.

Fair

64°F

18°C

Humidity 45%
Wind Speed E 9 mph
Barometer 30.12 in
Dewpoint 42°F (6°C)
Visibility 10.00 mi
Last update 11 May 10:15 pm CDT
Extended Forecast for

4 Miles WNW Castleton IL

  • Tonight

    Tonight: Partly cloudy, with a low around 54. East wind around 7 mph.

    Low: 54 °F

    Partly Cloudy

  • Monday

    Monday: A slight chance of showers between 3pm and 4pm, then a slight chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 80. East wind 6 to 11 mph, with gusts as high as 17 mph. Chance of precipitation is 20%.

    High: 80 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Monday Night

    Monday Night: A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 1am. Mostly cloudy, with a low around 61. East southeast wind 3 to 8 mph. Winds could gust as high as 15 mph. Chance of precipitation is 30%.

    Low: 61 °F

    Chance
    Showers

  • Tuesday

    Tuesday: A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 81. East southeast wind 5 to 7 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 81 °F

    Showers
    Likely

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 61. Southeast wind around 6 mph becoming calm in the evening.

    Low: 61 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 85. Light south southeast wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 16 mph.

    High: 85 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 66. South southeast wind around 9 mph, with gusts as high as 18 mph.

    Low: 66 °F

    Mostly Clear

  • Thursday

    Thursday: A 30 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 91.

    High: 91 °F

    Mostly Sunny
    then Chance
    T-storms

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 62.

    Low: 62 °F

    Mostly Clear

Detailed Forecast

Tonight
Partly cloudy, with a low around 54. East wind around 7 mph.
Monday
A slight chance of showers between 3pm and 4pm, then a slight chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 80. East wind 6 to 11 mph, with gusts as high as 17 mph. Chance of precipitation is 20%.
Monday Night
A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 1am. Mostly cloudy, with a low around 61. East southeast wind 3 to 8 mph. Winds could gust as high as 15 mph. Chance of precipitation is 30%.
Tuesday
A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 81. East southeast wind 5 to 7 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
Partly cloudy, with a low around 61. Southeast wind around 6 mph becoming calm in the evening.
Wednesday
Sunny, with a high near 85. Light south southeast wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 16 mph.
Wednesday Night
Mostly clear, with a low around 66. South southeast wind around 9 mph, with gusts as high as 18 mph.
Thursday
A 30 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 91.
Thursday Night
Mostly clear, with a low around 62.
Friday
Sunny, with a high near 81. Breezy.
Friday Night
Partly cloudy, with a low around 55.
Saturday
Sunny, with a high near 74.
Saturday Night
Partly cloudy, with a low around 52.
Sunday
Mostly sunny, with a high near 73.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles WNW Castleton IL
 41.14°N 89.77°W (Elev. 676 ft)
Last Update:
9:16 pm CDT May 11, 2025
Forecast Valid:
10pm CDT May 11, 2025-6pm CDT May 18, 2025
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation