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.

Fair

72°F

22°C

Humidity 85%
Wind Speed Calm
Barometer 30.08 in
Dewpoint 67°F (19°C)
Visibility 10.00 mi
Last update 7 Aug 11:35 pm CDT
Extended Forecast for

Chillicothe IL

  • Overnight

    Overnight: A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 71. South wind around 6 mph.

    Low: 71 °F

    Slight Chance
    T-storms

  • Friday

    Friday: Mostly sunny, with a high near 91. South wind 6 to 11 mph, with gusts as high as 20 mph.

    High: 91 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 76. South wind around 8 mph, with gusts as high as 17 mph.

    Low: 76 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 92. Heat index values as high as 101. South wind 8 to 11 mph, with gusts as high as 20 mph.

    High: 92 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A 30 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 74. South wind 6 to 8 mph, with gusts as high as 16 mph.

    Low: 74 °F

    Partly Cloudy
    then Chance
    T-storms

  • Sunday

    Sunday: A chance of showers and thunderstorms before 10am, then a chance of showers between 10am and 1pm. Partly sunny, with a high near 88. South wind 6 to 8 mph, with gusts as high as 15 mph. Chance of precipitation is 30%.

    High: 88 °F

    Chance
    T-storms then
    Chance
    Showers

  • Sunday Night

    Sunday Night: A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 72. South wind around 6 mph.

    Low: 72 °F

    Chance
    T-storms

  • Monday

    Monday: A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 86.

    High: 86 °F

    Chance
    T-storms

  • Monday Night

    Monday Night: A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 71.

    Low: 71 °F

    Chance
    T-storms

Detailed Forecast

Overnight
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 71. South wind around 6 mph.
Friday
Mostly sunny, with a high near 91. South wind 6 to 11 mph, with gusts as high as 20 mph.
Friday Night
Mostly clear, with a low around 76. South wind around 8 mph, with gusts as high as 17 mph.
Saturday
Mostly sunny, with a high near 92. Heat index values as high as 101. South wind 8 to 11 mph, with gusts as high as 20 mph.
Saturday Night
A 30 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 74. South wind 6 to 8 mph, with gusts as high as 16 mph.
Sunday
A chance of showers and thunderstorms before 10am, then a chance of showers between 10am and 1pm. Partly sunny, with a high near 88. South wind 6 to 8 mph, with gusts as high as 15 mph. Chance of precipitation is 30%.
Sunday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 72. South wind around 6 mph.
Monday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 86.
Monday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 71.
Tuesday
A chance of showers, with thunderstorms also possible after 1pm. Mostly sunny, with a high near 86. Chance of precipitation is 40%.
Tuesday Night
Partly cloudy, with a low around 70.
Wednesday
A chance of showers. Mostly sunny, with a high near 86.
Wednesday Night
Partly cloudy, with a low around 70.
Thursday
Mostly sunny, with a high near 87.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Chillicothe IL
 40.91°N 89.49°W (Elev. 472 ft)
Last Update:
12:40 am CDT Aug 8, 2025
Forecast Valid:
1am CDT Aug 8, 2025-6pm CDT Aug 14, 2025
 
Forecast Discussion
 
Get as KML Get as XML

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