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Hazardous Weather Conditions

Current conditions at

Marshall County Airport (KC75)

Lat: 41.02°NLon: 89.39°WElev: 545ft.

Overcast

60°F

16°C

Humidity 73%
Wind Speed E 6 mph
Barometer 30.13 in
Dewpoint 51°F (11°C)
Visibility 10.00 mi
Last update 15 Oct 2:55 am CDT
Extended Forecast for

Castleton IL

  • Overnight

    Overnight: A 20 percent chance of showers. Cloudy, with a low around 56. East northeast wind around 8 mph, with gusts as high as 18 mph.

    Low: 56 °F

    Slight Chance
    Showers

  • Thursday

    Thursday: Showers, with thunderstorms also possible after 4pm. High near 66. East wind around 7 mph becoming south in the afternoon. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

    High: 66 °F

    Showers
    Likely then
    Showers

  • Thursday Night

    Thursday Night: Showers and thunderstorms likely before 10pm, then a slight chance of showers between 10pm and 11pm. Mostly cloudy, with a low around 46. Northwest wind 13 to 18 mph, with gusts as high as 29 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 46 °F

    Showers
    Likely then
    Mostly Cloudy

  • Friday

    Friday: A chance of showers between noon and 5pm. Partly sunny, with a high near 53. Breezy, with a northwest wind 20 to 22 mph, with gusts as high as 34 mph. Chance of precipitation is 50%.

    High: 53 °F

    Breezy.
    Partly Sunny
    then Chance
    Showers

  • Friday Night

    Friday Night: Areas of frost after 4am. Otherwise, mostly clear, with a low around 34. North wind 13 to 18 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 28 mph.

    Low: 34 °F

    Mostly Clear
    then Areas
    Frost

  • Saturday

    Saturday: Widespread frost, mainly before 8am. Otherwise, sunny, with a high near 57. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 57 °F

    Frost then
    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 37. Calm wind becoming south 5 to 7 mph after midnight.

    Low: 37 °F

    Clear

  • Sunday

    Sunday: Areas of frost before 7am. Otherwise, sunny, with a high near 66.

    High: 66 °F

    Areas Frost
    then Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 41.

    Low: 41 °F

    Mostly Clear

Detailed Forecast

Overnight
A 20 percent chance of showers. Cloudy, with a low around 56. East northeast wind around 8 mph, with gusts as high as 18 mph.
Thursday
Showers, with thunderstorms also possible after 4pm. High near 66. East wind around 7 mph becoming south in the afternoon. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Thursday Night
Showers and thunderstorms likely before 10pm, then a slight chance of showers between 10pm and 11pm. Mostly cloudy, with a low around 46. Northwest wind 13 to 18 mph, with gusts as high as 29 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday
A chance of showers between noon and 5pm. Partly sunny, with a high near 53. Breezy, with a northwest wind 20 to 22 mph, with gusts as high as 34 mph. Chance of precipitation is 50%.
Friday Night
Areas of frost after 4am. Otherwise, mostly clear, with a low around 34. North wind 13 to 18 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 28 mph.
Saturday
Widespread frost, mainly before 8am. Otherwise, sunny, with a high near 57. Calm wind becoming southwest around 5 mph in the afternoon.
Saturday Night
Clear, with a low around 37. Calm wind becoming south 5 to 7 mph after midnight.
Sunday
Areas of frost before 7am. Otherwise, sunny, with a high near 66.
Sunday Night
Mostly clear, with a low around 41.
Monday
Mostly sunny, with a high near 70.
Monday Night
Partly cloudy, with a low around 43.
Tuesday
Sunny, with a high near 72.
Tuesday Night
Mostly clear, with a low around 46.
Wednesday
Mostly sunny, with a high near 74.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Castleton IL
 41.12°N 89.71°W (Elev. 768 ft)
Last Update:
1:55 am CDT Oct 15, 2026
Forecast Valid:
3am CDT Oct 15, 2026-6pm CDT Oct 21, 2026
 
Forecast Discussion
 
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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