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Sunset:  4:31 pm
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Dec 27

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December 8th, 2025 :: 4:26 am CST   

Local Weather Report for
Chillicothe
Illinois, United States

 Chillicothe Weather Forecast Summary  
 
Today
Dec 8th
Tuesday
Dec 9th
Wednesday
Dec 10th
Thursday
Dec 11th
Friday
Dec 12th
Cloudy Cloudy Mix of rain and snow Mix of rain and snow Cloudy
24°F
41°F
27°F
42°F
24°F
30°F
21°F
21°F
3°F
 
 Chillicothe Detailed Weather Forecast  
 
Monday, December 8th, 2025
Morning Temperature: 18°F
Sunny with cloudy periods.
Afternoon Temperature: 17°F
Cloudy.
Evening Temperature: 21°F
Cloudy. Windy at times.
Tuesday, December 9th, 2025
Overnight Temperature: 28°F
Cloudy. Windy.
Morning Temperature: 32°F
Cloudy. Windy at times.
Afternoon Temperature: 33°F
Cloudy.
Evening Temperature: 40°F
Cloudy with a slight chance of showers. Showers possibly mixed with wet flurries. Windy.
Wednesday, December 10th, 2025
Overnight Temperature: 40°F
Cloudy with showers likely. Showers possibly mixed with wet flurries. Windy.
Morning Temperature: 32°F
Cloudy with a chance of flurries or showers. Wind 20 to 30 mph.
Afternoon Temperature: 30°F
Cloudy. Windy at times.
Evening Temperature: 25°F
Clear with cloudy periods.
Thursday, December 11th, 2025
Overnight Temperature: 24°F
Cloudy.
Morning Temperature: 29°F
Cloudy with flurries or showers likely.
Afternoon Temperature: 29°F
Cloudy with sunny periods with flurries likely.
Evening Temperature: 23°F
Cloudy with clear periods.
Friday, December 12th, 2025
Overnight Temperature: 19°F
Cloudy. Windy at times.
Morning Temperature: 19°F
Cloudy with a chance of flurries. Windy.
Afternoon Temperature: 10°F
Cloudy. Windy at times.
Evening Temperature: 4°F
Cloudy. Windy at times.
Saturday, December 13th, 2025
Overnight Temperature: 3°F
Cloudy. Windy at times.
Morning Temperature: 8°F
Cloudy.
Afternoon Temperature: 10°F
Cloudy.
Evening Temperature: 9°F
Cloudy.
Sunday, December 14th, 2025
Overnight Temperature: 7°F
A mix of cloudy and clear skies.
Morning Temperature: 13°F
A mix of cloud and sun.
Afternoon Temperature: 12°F
Sunny with cloudy periods.
Evening Temperature: 13°F
Cloudy.
Monday, December 15th, 2025
Overnight Temperature: 18°F
Cloudy.
Morning Temperature: 24°F
Cloudy with flurries likely. Windy at times.
Afternoon Temperature: 25°F
Cloudy with flurries likely.
Evening Temperature: 20°F
A mix of cloudy and clear skies. Windy at times.
Tuesday, December 16th, 2025
Overnight Temperature: 13°F
Clear with cloudy periods. Windy at times.
Morning Temperature: 19°F
Sunny.
Afternoon Temperature: 14°F
Sunny.
Evening Temperature: 16°F
Clear.





 

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This WeatherCity Weather Forecast for Chillicothe, Illinois, United States is computed using a computer-generated forecast model and should be considered experimental. Please confirm this weather information with your official weather information office

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