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

Marshall County Airport (KC75)

Lat: 41.02°NLon: 89.39°WElev: 545ft.

Fair

49°F

9°C

Humidity 92%
Wind Speed Calm
Barometer 30.01 in
Dewpoint 47°F (8°C)
Visibility 10.00 mi
Last update 11 Oct 5:35 am CDT
Extended Forecast for

5 Miles NW Castleton IL

  • Today

    Today: Sunny, with a high near 83. Calm wind becoming south 5 to 7 mph in the morning.

    High: 83 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 64. South wind 6 to 8 mph, with gusts as high as 16 mph.

    Low: 64 °F

    Increasing
    Clouds

  • Columbus Day

    Columbus Day: Sunny, with a high near 89. South southwest wind 9 to 15 mph, with gusts as high as 23 mph.

    High: 89 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 70. Southwest wind 11 to 13 mph, with gusts as high as 22 mph.

    Low: 70 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 84. West northwest wind 8 to 11 mph, with gusts as high as 18 mph.

    High: 84 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Showers likely after 1am. Partly cloudy, with a low around 60. Light and variable wind becoming northeast around 5 mph after midnight. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 60 °F

    Mostly Clear
    then Showers
    Likely

  • Wednesday

    Wednesday: A 50 percent chance of showers. Mostly cloudy, with a high near 74. Northeast wind 6 to 9 mph, with gusts as high as 15 mph.

    High: 74 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A 40 percent chance of showers. Mostly cloudy, with a low around 55.

    Low: 55 °F

    Chance
    Showers

  • Thursday

    Thursday: Showers likely. Mostly cloudy, with a high near 70. Chance of precipitation is 70%.

    High: 70 °F

    Showers
    Likely

Detailed Forecast

Today
Sunny, with a high near 83. Calm wind becoming south 5 to 7 mph in the morning.
Tonight
Increasing clouds, with a low around 64. South wind 6 to 8 mph, with gusts as high as 16 mph.
Columbus Day
Sunny, with a high near 89. South southwest wind 9 to 15 mph, with gusts as high as 23 mph.
Monday Night
Clear, with a low around 70. Southwest wind 11 to 13 mph, with gusts as high as 22 mph.
Tuesday
Sunny, with a high near 84. West northwest wind 8 to 11 mph, with gusts as high as 18 mph.
Tuesday Night
Showers likely after 1am. Partly cloudy, with a low around 60. Light and variable wind becoming northeast around 5 mph after midnight. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
A 50 percent chance of showers. Mostly cloudy, with a high near 74. Northeast wind 6 to 9 mph, with gusts as high as 15 mph.
Wednesday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 55.
Thursday
Showers likely. Mostly cloudy, with a high near 70. Chance of precipitation is 70%.
Thursday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 49.
Friday
Partly sunny, with a high near 62. Breezy.
Friday Night
Mostly cloudy, with a low around 38. Breezy.
Saturday
Mostly sunny, with a high near 57.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles NW Castleton IL
 41.19°N 89.76°W (Elev. 751 ft)
Last Update:
5:01 am CDT Oct 11, 2026
Forecast Valid:
5am CDT Oct 11, 2026-6pm CDT Oct 17, 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