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

44°F

7°C

Humidity 60%
Wind Speed NW 12 G 20 mph
Barometer 30.23 in
Dewpoint 31°F (-1°C)
Visibility 10.00 mi
Wind Chill38°F (3°C)
Last update 5 Apr 10:55 am CDT
Extended Forecast for

4 Miles WNW Castleton IL

  • Today

    Today: Sunny, with a high near 56. West northwest wind around 16 mph, with gusts as high as 25 mph.

    High: 56 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 36. Northwest wind 7 to 10 mph, with gusts as high as 20 mph.

    Low: 36 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 52. Northwest wind 9 to 15 mph, with gusts as high as 23 mph.

    High: 52 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 26. North northeast wind 7 to 11 mph, with gusts as high as 21 mph.

    Low: 26 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 46. Northeast wind 6 to 8 mph becoming southeast in the afternoon.

    High: 46 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 39. Southeast wind 8 to 11 mph, with gusts as high as 22 mph.

    Low: 39 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 68. Breezy, with a south wind 14 to 21 mph, with gusts as high as 31 mph.

    High: 68 °F

    Partly Sunny
    and Breezy

  • Wednesday Night

    Wednesday Night: A 40 percent chance of showers. Mostly cloudy, with a low around 53.

    Low: 53 °F

    Chance
    Showers

  • Thursday

    Thursday: A 40 percent chance of showers. Partly sunny, with a high near 71.

    High: 71 °F

    Chance
    Showers

Detailed Forecast

Today
Sunny, with a high near 56. West northwest wind around 16 mph, with gusts as high as 25 mph.
Tonight
Mostly clear, with a low around 36. Northwest wind 7 to 10 mph, with gusts as high as 20 mph.
Monday
Mostly sunny, with a high near 52. Northwest wind 9 to 15 mph, with gusts as high as 23 mph.
Monday Night
Partly cloudy, with a low around 26. North northeast wind 7 to 11 mph, with gusts as high as 21 mph.
Tuesday
Partly sunny, with a high near 46. Northeast wind 6 to 8 mph becoming southeast in the afternoon.
Tuesday Night
Mostly cloudy, with a low around 39. Southeast wind 8 to 11 mph, with gusts as high as 22 mph.
Wednesday
Partly sunny, with a high near 68. Breezy, with a south wind 14 to 21 mph, with gusts as high as 31 mph.
Wednesday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 53.
Thursday
A 40 percent chance of showers. Partly sunny, with a high near 71.
Thursday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 48.
Friday
A chance of showers. Mostly cloudy, with a high near 68.
Friday Night
A chance of showers. Mostly cloudy, with a low around 48.
Saturday
A chance of showers. Mostly cloudy, with a high near 67.
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:
10:36 am CDT Apr 5, 2026
Forecast Valid:
11am CDT Apr 5, 2026-6pm CDT Apr 11, 2026
 
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