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December 19th, 2025 :: 6:04 am CST   

Local Weather Report for
Monticello
Illinois, United States

 Monticello Weather Forecast Summary  
 
Today
Dec 19th
Saturday
Dec 20th
Sunday
Dec 21st
Monday
Dec 22nd
Tuesday
Dec 23rd
Cloudy Cloudy Cloudy Cloudy Cloudy
30°F
46°F
32°F
35°F
26°F
37°F
28°F
50°F
38°F
 
 Monticello Detailed Weather Forecast  
 
Friday, December 19th, 2025
Morning Temperature: 26°F
Cloudy. Windy.
Afternoon Temperature: 27°F
Sunny.
Evening Temperature: 29°F
Cloudy. Windy at times.
Saturday, December 20th, 2025
Overnight Temperature: 34°F
Cloudy. Windy.
Morning Temperature: 42°F
Cloudy. Windy.
Afternoon Temperature: 38°F
Cloudy. Windy at times.
Evening Temperature: 32°F
Clear. Windy at times.
Sunday, December 21st, 2025
Overnight Temperature: 31°F
Clear with cloudy periods. Windy at times.
Morning Temperature: 33°F
Mostly sunny. Windy at times.
Afternoon Temperature: 28°F
Sunny.
Evening Temperature: 27°F
Cloudy.
Monday, December 22nd, 2025
Overnight Temperature: 28°F
Cloudy. Windy at times.
Morning Temperature: 32°F
Cloudy with a slight chance of flurries or showers. Risk of freezing rain. Windy at times.
Afternoon Temperature: 35°F
Cloudy. Windy at times.
Evening Temperature: 37°F
Cloudy. Windy at times.
Tuesday, December 23rd, 2025
Overnight Temperature: 38°F
Cloudy.
Morning Temperature: 46°F
Cloudy.
Afternoon Temperature: 44°F
A mix of cloud and sun.
Evening Temperature: 41°F
Cloudy.
Wednesday, December 24th, 2025
Overnight Temperature: 38°F
A mix of cloudy and clear skies.
Morning Temperature: 48°F
Cloudy. Windy at times.
Afternoon Temperature: 52°F
Cloudy.
Evening Temperature: 57°F
Cloudy with a chance of showers. Windy at times.
Thursday, December 25th, 2025
Overnight Temperature: 59°F
Cloudy with a slight chance of showers. Windy at times.
Morning Temperature: 62°F
Cloudy. Wind 20 to 30 mph.
Afternoon Temperature: 68°F
A mix of cloud and sun. Wind 20 to 30 mph.
Evening Temperature: 63°F
Clear. Windy.
Friday, December 26th, 2025
Overnight Temperature: 52°F
Cloudy. Windy at times.
Morning Temperature: 53°F
Cloudy.
Afternoon Temperature: 52°F
Cloudy.
Evening Temperature: 50°F
A mix of cloudy and clear skies.
Saturday, December 27th, 2025
Overnight Temperature: 50°F
Cloudy.
Morning Temperature: 55°F
Cloudy.
Afternoon Temperature: 52°F
Cloudy.
Evening Temperature: 49°F
Cloudy.





 

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Champaign, IL 
4:53 AM  19°F
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4:53 AM  19°F
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4:55 AM  18°F
light snow
 
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4:56 AM  18°F
light snow
 
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This WeatherCity Weather Forecast for Monticello, 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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