National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Marshall County Airport (KC75)

Lat: 41.02°NLon: 89.39°WElev: 545ft.

Partly Cloudy

84°F

29°C

Humidity 62%
Wind Speed Calm
Barometer 30.00 in
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Heat Index88°F (31°C)
Last update 15 Jul 1:15 pm CDT
Extended Forecast for

4 Miles WNW Castleton IL

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 88. South wind around 7 mph.

    High: 88 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 71. South wind around 5 mph becoming calm in the evening.

    Low: 71 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A 50 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 90. Light south wind becoming south southwest 5 to 10 mph in the morning.

    High: 90 °F

    Mostly Sunny
    then Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Showers and thunderstorms likely before 1am, then a chance of showers. Mostly cloudy, with a low around 68. West southwest wind 6 to 9 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 68 °F

    T-storms
    Likely

  • Thursday

    Thursday: A chance of showers between 1pm and 4pm, then a chance of showers and thunderstorms after 4pm. Mostly cloudy, with a high near 77. North northwest wind 6 to 10 mph, with gusts as high as 15 mph. Chance of precipitation is 40%.

    High: 77 °F

    Mostly Cloudy
    then Chance
    T-storms

  • Thursday Night

    Thursday Night: A chance of thunderstorms before 7pm. Mostly cloudy, with a low around 59. Northeast wind 5 to 7 mph. Chance of precipitation is 30%.

    Low: 59 °F

    Chance
    T-storms then
    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 80. East northeast wind 3 to 5 mph.

    High: 80 °F

    Partly Sunny

  • Friday Night

    Friday Night: A 30 percent chance of showers after 1am. Mostly cloudy, with a low around 65.

    Low: 65 °F

    Partly Cloudy
    then Chance
    Showers

  • Saturday

    Saturday: A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 85.

    High: 85 °F

    Chance
    T-storms

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 88. South wind around 7 mph.
Tonight
Partly cloudy, with a low around 71. South wind around 5 mph becoming calm in the evening.
Wednesday
A 50 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 90. Light south wind becoming south southwest 5 to 10 mph in the morning.
Wednesday Night
Showers and thunderstorms likely before 1am, then a chance of showers. Mostly cloudy, with a low around 68. West southwest wind 6 to 9 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Thursday
A chance of showers between 1pm and 4pm, then a chance of showers and thunderstorms after 4pm. Mostly cloudy, with a high near 77. North northwest wind 6 to 10 mph, with gusts as high as 15 mph. Chance of precipitation is 40%.
Thursday Night
A chance of thunderstorms before 7pm. Mostly cloudy, with a low around 59. Northeast wind 5 to 7 mph. Chance of precipitation is 30%.
Friday
Partly sunny, with a high near 80. East northeast wind 3 to 5 mph.
Friday Night
A 30 percent chance of showers after 1am. Mostly cloudy, with a low around 65.
Saturday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 85.
Saturday Night
A 50 percent chance of showers and thunderstorms. Some of the storms could produce heavy rainfall. Mostly cloudy, with a low around 68.
Sunday
A chance of showers and thunderstorms. Partly sunny, with a high near 87.
Sunday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 67.
Monday
A chance of showers and thunderstorms. Partly sunny, with a high near 87.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles WNW Castleton IL
 41.14°N 89.77°W (Elev. 676 ft)
Last Update:
12:41 pm CDT Jul 15, 2025
Forecast Valid:
1pm CDT Jul 15, 2025-6pm CDT Jul 21, 2025
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation