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

37°F

3°C

Humidity 87%
Wind Speed Calm
Barometer 30.01 in
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Last update 10 Nov 11:35 pm CST
Extended Forecast for

Chillicothe IL

  • Tonight

    Tonight: Mostly cloudy, with a low around 42. Calm wind.

    Low: 42 °F

    Mostly Cloudy

  • Veterans Day

    Veterans Day: Showers and thunderstorms likely, mainly before 3pm. Partly sunny, with a high near 57. Light and variable wind becoming north 5 to 10 mph in the afternoon. Winds could gust as high as 18 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 57 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 38. North northwest wind 6 to 9 mph, with gusts as high as 18 mph.

    Low: 38 °F

    Partly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 46. North wind 9 to 14 mph, with gusts as high as 23 mph.

    High: 46 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 30. North wind 5 to 9 mph becoming light north northwest. Winds could gust as high as 17 mph.

    Low: 30 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 42. North northwest wind 6 to 9 mph, with gusts as high as 17 mph.

    High: 42 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 24. Light north northwest wind.

    Low: 24 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 45.

    High: 45 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 29.

    Low: 29 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly cloudy, with a low around 42. Calm wind.
Veterans Day
Showers and thunderstorms likely, mainly before 3pm. Partly sunny, with a high near 57. Light and variable wind becoming north 5 to 10 mph in the afternoon. Winds could gust as high as 18 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Partly cloudy, with a low around 38. North northwest wind 6 to 9 mph, with gusts as high as 18 mph.
Thursday
Partly sunny, with a high near 46. North wind 9 to 14 mph, with gusts as high as 23 mph.
Thursday Night
Mostly clear, with a low around 30. North wind 5 to 9 mph becoming light north northwest. Winds could gust as high as 17 mph.
Friday
Sunny, with a high near 42. North northwest wind 6 to 9 mph, with gusts as high as 17 mph.
Friday Night
Mostly clear, with a low around 24. Light north northwest wind.
Saturday
Sunny, with a high near 45.
Saturday Night
Mostly clear, with a low around 29.
Sunday
Sunny, with a high near 49.
Sunday Night
Partly cloudy, with a low around 33.
Monday
Sunny, with a high near 51.
Monday Night
Mostly clear, with a low around 34.
Tuesday
Sunny, with a high near 54.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Chillicothe IL
 40.92°N 89.52°W (Elev. 522 ft)
Last Update:
10:41 pm CST Nov 10, 2026
Forecast Valid:
11pm CST Nov 10, 2026-6pm CST Nov 17, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation