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February 20th, 2026 :: 8:24 pm CST   

Local Weather Report for
Monticello
Illinois, United States

 Monticello Weather Forecast Summary  
 
Today
Feb 20th
Saturday
Feb 21st
Sunday
Feb 22nd
Monday
Feb 23rd
Tuesday
Feb 24th
Cloudy Cloudy Cloudy Cloudy Cloudy
41°F
39°F
26°F
30°F
23°F
32°F
19°F
39°F
23°F
 
 Monticello Detailed Weather Forecast  
 
Friday, February 20th, 2026
Evening Temperature: 31°F
Cloudy. Windy at times.
Saturday, February 21st, 2026
Overnight Temperature: 27°F
Clear with cloudy periods. Windy at times.
Morning Temperature: 34°F
Cloudy. Windy at times.
Afternoon Temperature: 33°F
Sunny. Windy at times.
Evening Temperature: 28°F
Cloudy. Windy at times.
Sunday, February 22nd, 2026
Overnight Temperature: 24°F
Cloudy. Windy at times.
Morning Temperature: 27°F
Cloudy. Windy.
Afternoon Temperature: 25°F
A mix of cloud and sun. Windy.
Evening Temperature: 23°F
Cloudy. Windy.
Monday, February 23rd, 2026
Overnight Temperature: 20°F
A mix of cloudy and clear skies. Windy at times.
Morning Temperature: 27°F
Cloudy. Windy.
Afternoon Temperature: 27°F
Sunny.
Evening Temperature: 24°F
Clear.
Tuesday, February 24th, 2026
Overnight Temperature: 24°F
Cloudy. Windy at times.
Morning Temperature: 34°F
Cloudy. Windy.
Afternoon Temperature: 36°F
Cloudy.
Evening Temperature: 37°F
Cloudy.
Wednesday, February 25th, 2026
Overnight Temperature: 34°F
A mix of cloudy and clear skies.
Morning Temperature: 45°F
Cloudy. Windy at times.
Afternoon Temperature: 46°F
Cloudy.
Evening Temperature: 49°F
Cloudy with a slight chance of showers.
Thursday, February 26th, 2026
Overnight Temperature: 45°F
Cloudy with showers likely. Windy at times.
Morning Temperature: 38°F
Cloudy with showers likely. Showers possibly mixed with wet flurries. Windy.
Afternoon Temperature: 35°F
Cloudy with a chance of flurries or showers. Risk of freezing rain. Windy.
Evening Temperature: 30°F
A mix of cloudy and clear skies. Windy.
Friday, February 27th, 2026
Overnight Temperature: 28°F
Clear. Windy at times.
Morning Temperature: 38°F
Sunny.
Afternoon Temperature: 39°F
Sunny.
Evening Temperature: 36°F
A mix of clear and cloudy skies.
Saturday, February 28th, 2026
Overnight Temperature: 35°F
A mix of cloudy and clear skies.
Morning Temperature: 54°F
Sunny. Windy at times.
Afternoon Temperature: 54°F
Sunny.
Evening Temperature: 48°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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