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January 8th, 2026 :: 7:22 am CST   

Local Weather Report for
Monticello
Illinois, United States

 Monticello Weather Forecast Summary  
 
Today
Jan 8th
Friday
Jan 9th
Saturday
Jan 10th
Sunday
Jan 11th
Monday
Jan 12th
Showers Cloudy Mix of rain and snow Cloudy Cloudy
64°F
61°F
41°F
40°F
27°F
32°F
21°F
43°F
25°F
 
 Monticello Detailed Weather Forecast  
 
Thursday, January 8th, 2026
Morning Temperature: 53°F
Cloudy with a chance of showers. Windy.
Afternoon Temperature: 61°F
Cloudy with showers likely. Wind 20 to 30 mph.
Evening Temperature: 64°F
Clear with cloudy periods with a few showers. Slight chance of a thunderstorm. Wind 25 to 40 mph.
Friday, January 9th, 2026
Overnight Temperature: 56°F
Cloudy with a chance of showers. Windy.
Morning Temperature: 46°F
Cloudy. Windy at times.
Afternoon Temperature: 44°F
Cloudy.
Evening Temperature: 42°F
Cloudy.
Saturday, January 10th, 2026
Overnight Temperature: 38°F
Cloudy.
Morning Temperature: 38°F
Cloudy with showers likely. Showers possibly mixed with wet flurries. Windy.
Afternoon Temperature: 36°F
A mix of cloud and sun. Windy at times.
Evening Temperature: 29°F
A mix of cloudy and clear skies with a chance of flurries or showers. Windy.
Sunday, January 11th, 2026
Overnight Temperature: 23°F
Cloudy with a slight chance of flurries. Windy.
Morning Temperature: 27°F
Sunny with cloudy periods. Windy.
Afternoon Temperature: 28°F
Sunny. Windy at times.
Evening Temperature: 26°F
Clear. Windy at times.
Monday, January 12th, 2026
Overnight Temperature: 25°F
A mix of cloudy and clear skies.
Morning Temperature: 37°F
Cloudy. Windy.
Afternoon Temperature: 34°F
A mix of cloud and sun.
Evening Temperature: 34°F
Cloudy.
Tuesday, January 13th, 2026
Overnight Temperature: 36°F
Cloudy. Windy at times.
Morning Temperature: 43°F
Cloudy. Windy.
Afternoon Temperature: 42°F
Cloudy. Windy.
Evening Temperature: 38°F
Cloudy. Windy at times.
Wednesday, January 14th, 2026
Overnight Temperature: 33°F
Cloudy. Windy.
Morning Temperature: 35°F
Cloudy. Windy at times.
Afternoon Temperature: 33°F
A mix of sun and cloud. Windy at times.
Evening Temperature: 28°F
Clear. Windy at times.
Thursday, January 15th, 2026
Overnight Temperature: 24°F
Clear. Windy at times.
Morning Temperature: 27°F
Sunny with cloudy periods. Windy at times.
Afternoon Temperature: 25°F
Sunny.
Evening Temperature: 23°F
Cloudy.
Friday, January 16th, 2026
Overnight Temperature: 21°F
Cloudy.
Morning Temperature: 26°F
Cloudy.
Afternoon Temperature: 24°F
Sunny.
Evening Temperature: 23°F
Cloudy. Windy at times.





 

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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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