Current conditions at

Marshall County Airport (KC75)

Lat: 41.02°NLon: 89.39°WElev: 545ft.

Fair

28°F

-2°C

Humidity 74%
Wind Speed Calm
Barometer 30.67 in
Dewpoint 20°F (-7°C)
Visibility 10.00 mi
Last update 28 Mar 7:55 am CDT
Extended Forecast for

4 Miles WNW Castleton IL

  • Today

    Today: Sunny, with a high near 53. Light and variable wind becoming south southwest 9 to 14 mph in the morning. Winds could gust as high as 24 mph.

    High: 53 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 39. South wind around 11 mph, with gusts as high as 23 mph.

    Low: 39 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 67. South southwest wind 11 to 16 mph, with gusts as high as 28 mph.

    High: 67 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 50. South wind 8 to 10 mph, with gusts as high as 18 mph.

    Low: 50 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 81. South southwest wind 8 to 15 mph, with gusts as high as 24 mph.

    High: 81 °F

    Mostly Sunny

  • Monday Night

    Monday Night: A 40 percent chance of showers and thunderstorms.  Mostly cloudy, with a low around 64. South southwest wind 14 to 18 mph, with gusts as high as 29 mph.

    Low: 64 °F

    Chance
    T-storms

  • Tuesday

    Tuesday: A chance of showers, then showers likely and possibly a thunderstorm after 1pm.  Mostly cloudy, with a high near 78. Breezy, with a southwest wind 17 to 21 mph, with gusts as high as 36 mph.  Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 78 °F

    Breezy.
    Chance
    Showers then
    Showers
    Likely

  • Tuesday Night

    Tuesday Night: Rain likely, mainly before 1am.  Mostly cloudy, with a low around 39. Chance of precipitation is 70%.

    Low: 39 °F

    Rain Likely

  • Wednesday

    Wednesday: Partly sunny, with a high near 52.

    High: 52 °F

    Partly Sunny

Detailed Forecast

Today
Sunny, with a high near 53. Light and variable wind becoming south southwest 9 to 14 mph in the morning. Winds could gust as high as 24 mph.
Tonight
Partly cloudy, with a low around 39. South wind around 11 mph, with gusts as high as 23 mph.
Sunday
Partly sunny, with a high near 67. South southwest wind 11 to 16 mph, with gusts as high as 28 mph.
Sunday Night
Partly cloudy, with a low around 50. South wind 8 to 10 mph, with gusts as high as 18 mph.
Monday
Mostly sunny, with a high near 81. South southwest wind 8 to 15 mph, with gusts as high as 24 mph.
Monday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 64. South southwest wind 14 to 18 mph, with gusts as high as 29 mph.
Tuesday
A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 78. Breezy, with a southwest wind 17 to 21 mph, with gusts as high as 36 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
Rain likely, mainly before 1am. Mostly cloudy, with a low around 39. Chance of precipitation is 70%.
Wednesday
Partly sunny, with a high near 52.
Wednesday Night
A 30 percent chance of rain after 1am. Partly cloudy, with a low around 32.
Thursday
A chance of rain. Partly sunny, with a high near 52.
Thursday Night
A chance of rain. Mostly cloudy, with a low around 38.
Friday
A chance of rain. Partly sunny, with a high near 64.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles WNW Castleton IL
 41.14°N 89.77°W (Elev. 676 ft)
7:46 am CDT Mar 28, 2026
8am CDT Mar 28, 2026-6pm CDT Apr 3, 2026
 
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