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.

Fog/Mist

59°F

15°C

Humidity 93%
Wind Speed NE 7 mph
Barometer 30.05 in
Dewpoint 57°F (14°C)
Visibility 5.00 mi
Last update 21 Sep 5:55 am CDT
Extended Forecast for

Chillicothe IL

  • Today

    Today: A 20 percent chance of showers. Cloudy, with a high near 65. East northeast wind 8 to 13 mph, with gusts as high as 21 mph.

    High: 65 °F

    Slight Chance
    Showers

  • Tonight

    Tonight: A 30 percent chance of showers, mainly between 1am and 5am. Mostly cloudy, with a low around 57. East northeast wind 8 to 10 mph, with gusts as high as 18 mph.

    Low: 57 °F

    Chance
    Showers

  • Tuesday

    Tuesday: A 20 percent chance of showers before 8am. Partly sunny, with a high near 66. Northeast wind around 11 mph, with gusts as high as 18 mph.

    High: 66 °F

    Slight Chance
    Showers then
    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 52. North northeast wind 5 to 9 mph, with gusts as high as 16 mph.

    Low: 52 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 69. Northeast wind 5 to 10 mph, with gusts as high as 17 mph.

    High: 69 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 53. Northeast wind 5 to 8 mph becoming calm after midnight. Winds could gust as high as 15 mph.

    Low: 53 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 70. Calm wind becoming east northeast around 6 mph in the morning.

    High: 70 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 55.

    Low: 55 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 71.

    High: 71 °F

    Mostly Sunny

Detailed Forecast

Today
A 20 percent chance of showers. Cloudy, with a high near 65. East northeast wind 8 to 13 mph, with gusts as high as 21 mph.
Tonight
A 30 percent chance of showers, mainly between 1am and 5am. Mostly cloudy, with a low around 57. East northeast wind 8 to 10 mph, with gusts as high as 18 mph.
Tuesday
A 20 percent chance of showers before 8am. Partly sunny, with a high near 66. Northeast wind around 11 mph, with gusts as high as 18 mph.
Tuesday Night
Mostly clear, with a low around 52. North northeast wind 5 to 9 mph, with gusts as high as 16 mph.
Wednesday
Mostly sunny, with a high near 69. Northeast wind 5 to 10 mph, with gusts as high as 17 mph.
Wednesday Night
Partly cloudy, with a low around 53. Northeast wind 5 to 8 mph becoming calm after midnight. Winds could gust as high as 15 mph.
Thursday
Mostly sunny, with a high near 70. Calm wind becoming east northeast around 6 mph in the morning.
Thursday Night
Mostly cloudy, with a low around 55.
Friday
Mostly sunny, with a high near 71.
Friday Night
Partly cloudy, with a low around 53.
Saturday
Partly sunny, with a high near 71.
Saturday Night
Mostly cloudy, with a low around 55.
Sunday
Mostly sunny, with a high near 76.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Chillicothe IL
 40.91°N 89.49°W (Elev. 472 ft)
Last Update:
4:46 am CDT Sep 21, 2026
Forecast Valid:
6am CDT Sep 21, 2026-6pm CDT Sep 27, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation