Current conditions at

Marshall County Airport (KC75)

Lat: 41.02°NLon: 89.39°WElev: 545ft.

Fog

39°F

4°C

Humidity 96%
Wind Speed Calm
Barometer 29.97 in
Dewpoint 38°F (3°C)
Visibility 0.25 mi
Last update 5 Mar 5:15 am CST
Extended Forecast for

4 Miles WNW Castleton IL

Dense Fog Advisory March 5, 05:22am until March 5, 09:00am
Click here for hazard details and duration
Dense Fog Advisory
  •  
    Dense Fog Advisory March 5, 05:22am until March 5, 09:00am

    NOW until 9:00am Thu

    Dense Fog Advisory

  • Overnight

    Low: 41 °F

    Slight Chance
    Showers and
    Dense Fog

  • Thursday

    Thursday: A 30 percent chance of showers, mainly before 10am.  Widespread dense fog, mainly before 10am.  Otherwise, cloudy, with a high near 57. Calm wind becoming north around 6 mph.

    High: 57 °F

    Chance
    Showers and
    Dense Fog
    then Patchy
    Fog

  • Thursday Night

    Thursday Night: A 30 percent chance of showers and thunderstorms after 3am.  Widespread fog, mainly before 3am.  Otherwise, cloudy, with a low around 47. Southeast wind 3 to 8 mph. Winds could gust as high as 16 mph.

    Low: 47 °F

    Fog then
    Chance
    T-storms and
    Fog

  • Friday

    Friday: Showers and possibly a thunderstorm before 9am, then showers likely.  Patchy fog before 9am. High near 75. Breezy, with a south wind 9 to 14 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.  Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 75 °F

    Showers and
    Patchy Fog
    then Chance
    Showers and
    Breezy

  • Friday Night

    Friday Night: A chance of showers and thunderstorms before midnight, then showers and possibly a thunderstorm between midnight and 3am, then showers after 3am.  Low around 52. South wind 14 to 18 mph, with gusts as high as 29 mph.  Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 52 °F

    Chance
    T-storms then
    Showers

  • Saturday

    Saturday: Partly sunny, with a high near 58. West wind 11 to 18 mph, with gusts as high as 28 mph.

    High: 58 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 33. West northwest wind 5 to 9 mph becoming southwest after midnight. Winds could gust as high as 17 mph.

    Low: 33 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 63.

    High: 63 °F

    Sunny

Detailed Forecast

Overnight
A 20 percent chance of showers. Widespread dense fog. Otherwise, cloudy, with a low around 41. Light northeast wind.
Thursday
A 30 percent chance of showers, mainly before 10am. Widespread dense fog, mainly before 10am. Otherwise, cloudy, with a high near 57. Calm wind becoming north around 6 mph.
Thursday Night
A 30 percent chance of showers and thunderstorms after 3am. Widespread fog, mainly before 3am. Otherwise, cloudy, with a low around 47. Southeast wind 3 to 8 mph. Winds could gust as high as 16 mph.
Friday
Showers and possibly a thunderstorm before 9am, then showers likely. Patchy fog before 9am. High near 75. Breezy, with a south wind 9 to 14 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday Night
A chance of showers and thunderstorms before midnight, then showers and possibly a thunderstorm between midnight and 3am, then showers after 3am. Low around 52. South wind 14 to 18 mph, with gusts as high as 29 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Saturday
Partly sunny, with a high near 58. West wind 11 to 18 mph, with gusts as high as 28 mph.
Saturday Night
Mostly clear, with a low around 33. West northwest wind 5 to 9 mph becoming southwest after midnight. Winds could gust as high as 17 mph.
Sunday
Sunny, with a high near 63.
Sunday Night
Clear, with a low around 45.
Monday
Sunny, with a high near 74.
Monday Night
A chance of showers. Mostly clear, with a low around 54.
Tuesday
Showers. Partly sunny, with a high near 71.
Tuesday Night
Showers. Mostly cloudy, with a low around 41.
Wednesday
A chance of showers. Mostly cloudy, with a high near 55.
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)
4:27 am CST Mar 5, 2026
5am CST Mar 5, 2026-6pm CDT Mar 11, 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