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.

Light Drizzle

51°F

11°C

Humidity 94%
Wind Speed NW 7 mph
Barometer 29.87 in
Dewpoint 50°F (10°C)
Visibility 4.00 mi
Wind Chill48°F (9°C)
Last update 5 Nov 5:35 pm CST
Extended Forecast for

Chillicothe IL

  • This Afternoon

    This Afternoon: A 50 percent chance of showers. Cloudy, with a high near 54. West wind around 7 mph.

    High: 54 °F

    Chance
    Showers

  • Tonight

    Tonight: A chance of showers before 8pm, then a slight chance of drizzle between 8pm and 9pm. Cloudy, with a low around 39. North wind 6 to 9 mph, with gusts as high as 17 mph. Chance of precipitation is 40%.

    Low: 39 °F

    Chance
    Showers then
    Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 48. North wind 8 to 14 mph, with gusts as high as 20 mph.

    High: 48 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 29. North northwest wind around 6 mph becoming calm in the evening.

    Low: 29 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 51. Light and variable wind.

    High: 51 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 33. Light west southwest wind.

    Low: 33 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 60. Calm wind becoming west southwest around 6 mph.

    High: 60 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 36.

    Low: 36 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 66.

    High: 66 °F

    Sunny

Detailed Forecast

This Afternoon
A 50 percent chance of showers. Cloudy, with a high near 54. West wind around 7 mph.
Tonight
A chance of showers before 8pm, then a slight chance of drizzle between 8pm and 9pm. Cloudy, with a low around 39. North wind 6 to 9 mph, with gusts as high as 17 mph. Chance of precipitation is 40%.
Friday
Mostly sunny, with a high near 48. North wind 8 to 14 mph, with gusts as high as 20 mph.
Friday Night
Mostly clear, with a low around 29. North northwest wind around 6 mph becoming calm in the evening.
Saturday
Sunny, with a high near 51. Light and variable wind.
Saturday Night
Mostly clear, with a low around 33. Light west southwest wind.
Sunday
Sunny, with a high near 60. Calm wind becoming west southwest around 6 mph.
Sunday Night
Mostly clear, with a low around 36.
Monday
Sunny, with a high near 66.
Monday Night
Clear, with a low around 40.
Tuesday
Sunny, with a high near 62.
Tuesday Night
Mostly clear, with a low around 37.
Veterans Day
Sunny, with a high near 60.
Wednesday Night
Mostly clear, with a low around 39.
Thursday
Mostly sunny, with a high near 59.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Chillicothe IL
 40.94°N 89.49°W (Elev. 449 ft)
Last Update:
5:21 pm CST Nov 5, 2026
Forecast Valid:
5pm CST Nov 5, 2026-6pm CST Nov 12, 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