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.

Mostly Cloudy

77°F

25°C

Humidity 64%
Wind Speed SW 7 mph
Barometer 30.01 in
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 24 Jun 1:55 pm CDT
Extended Forecast for

Chillicothe IL

Flood Warning until further notice
Click here for hazard details and duration
Flood Warning until further notice
  •  
    Flood Warning until further notice

    NOW until further notice

    Flood Warning

  • This Afternoon

    High: 80 °F

    Chance
    T-storms

  • Tonight

    Tonight: A chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 1am. Partly cloudy, with a low around 62. Southwest wind around 6 mph becoming calm in the evening. Chance of precipitation is 40%.

    Low: 62 °F

    Chance
    T-storms then
    Slight Chance
    Showers

  • Thursday

    Thursday: Partly sunny, with a high near 81. Calm wind becoming northwest 5 to 7 mph in the afternoon.

    High: 81 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: A 40 percent chance of showers after 4am. Mostly cloudy, with a low around 62. North wind around 5 mph becoming calm in the evening.

    Low: 62 °F

    Mostly Cloudy
    then Chance
    Showers

  • Friday

    Friday: Showers likely before 1pm, then showers likely and possibly a thunderstorm between 1pm and 4pm, then showers likely after 4pm. Mostly cloudy, with a high near 76. East wind 6 to 8 mph, with gusts as high as 17 mph. Chance of precipitation is 70%. New rainfall amounts between three quarters and one inch possible.

    High: 76 °F

    Showers
    Likely

  • Friday Night

    Friday Night: A 30 percent chance of showers before 1am. Mostly cloudy, with a low around 63. East northeast wind 3 to 8 mph. Winds could gust as high as 16 mph.

    Low: 63 °F

    Chance
    Showers

  • Saturday

    Saturday: Partly sunny, with a high near 82. Southeast wind 3 to 5 mph.

    High: 82 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 71.

    Low: 71 °F

    Partly Cloudy
    then Chance
    T-storms

Detailed Forecast

This Afternoon
A 30 percent chance of showers and thunderstorms, mainly after 4pm. Partly sunny, with a high near 80. Southwest wind around 9 mph, with gusts as high as 18 mph.
Tonight
A chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 1am. Partly cloudy, with a low around 62. Southwest wind around 6 mph becoming calm in the evening. Chance of precipitation is 40%.
Thursday
Partly sunny, with a high near 81. Calm wind becoming northwest 5 to 7 mph in the afternoon.
Thursday Night
A 40 percent chance of showers after 4am. Mostly cloudy, with a low around 62. North wind around 5 mph becoming calm in the evening.
Friday
Showers likely before 1pm, then showers likely and possibly a thunderstorm between 1pm and 4pm, then showers likely after 4pm. Mostly cloudy, with a high near 76. East wind 6 to 8 mph, with gusts as high as 17 mph. Chance of precipitation is 70%. New rainfall amounts between three quarters and one inch possible.
Friday Night
A 30 percent chance of showers before 1am. Mostly cloudy, with a low around 63. East northeast wind 3 to 8 mph. Winds could gust as high as 16 mph.
Saturday
Partly sunny, with a high near 82. Southeast wind 3 to 5 mph.
Saturday Night
A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 71.
Sunday
Mostly sunny, with a high near 90.
Sunday Night
Mostly clear, with a low around 75.
Monday
Sunny, with a high near 92.
Monday Night
Mostly clear, with a low around 75.
Tuesday
Sunny, with a high near 93.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Chillicothe IL
 40.91°N 89.49°W (Elev. 472 ft)
Last Update:
1:36 pm CDT Jun 24, 2026
Forecast Valid:
2pm CDT Jun 24, 2026-6pm CDT Jun 30, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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