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December 15th, 2025 :: 5:42 am CST   

Local Weather Report for
Lake Forest
Illinois, United States

 Lake Forest Weather Forecast Summary  
 
Today
Dec 15th
Tuesday
Dec 16th
Wednesday
Dec 17th
Thursday
Dec 18th
Friday
Dec 19th
Cloudy Cloudy Cloudy Mix of rain and snow Cloudy
28°F
39°F
30°F
39°F
31°F
43°F
25°F
32°F
18°F
 
 Lake Forest Detailed Weather Forecast  
 
Monday, December 15th, 2025
Morning Temperature: 23°F
Cloudy. Wind 25 to 40 mph.
Afternoon Temperature: 27°F
Sunny with cloudy periods. Windy.
Evening Temperature: 27°F
Clear with cloudy periods. Windy at times.
Tuesday, December 16th, 2025
Overnight Temperature: 31°F
A mix of cloudy and clear skies. Windy.
Morning Temperature: 36°F
Cloudy. Wind 20 to 30 mph.
Afternoon Temperature: 38°F
Sunny with cloudy periods. Wind 25 to 40 mph.
Evening Temperature: 39°F
Cloudy. Wind 20 to 30 mph.
Wednesday, December 17th, 2025
Overnight Temperature: 39°F
Cloudy. Wind 20 to 30 mph.
Morning Temperature: 32°F
Sunny. Windy.
Afternoon Temperature: 37°F
A mix of cloud and sun. Windy.
Evening Temperature: 39°F
Cloudy. Wind 20 to 30 mph.
Thursday, December 18th, 2025
Overnight Temperature: 41°F
Cloudy with a slight chance of showers. Wind 25 to 40 mph.
Morning Temperature: 41°F
Cloudy with a few showers. Showers possibly mixed with wet flurries. Wind 25 to 40 mph.
Afternoon Temperature: 35°F
A mix of cloud and sun with flurries or showers likely. Risk of freezing rain. Wind 25 to 40 mph.
Evening Temperature: 28°F
Cloudy with a chance of flurries. Wind 25 to 40 mph.
Friday, December 19th, 2025
Overnight Temperature: 21°F
Cloudy with a slight chance of flurries. Wind 25 to 40 mph.
Morning Temperature: 18°F
A mix of cloud and sun. Windy.
Afternoon Temperature: 24°F
Cloudy. Windy at times.
Evening Temperature: 31°F
Cloudy with a chance of flurries or showers. Wind 20 to 30 mph.
Saturday, December 20th, 2025
Overnight Temperature: 35°F
Cloudy. Wind 25 to 40 mph.
Morning Temperature: 38°F
Cloudy. Wind 25 to 40 mph.
Afternoon Temperature: 40°F
Cloudy. Windy.
Evening Temperature: 36°F
Cloudy. Windy.
Sunday, December 21st, 2025
Overnight Temperature: 32°F
Cloudy. Windy.
Morning Temperature: 33°F
Sunny. Windy.
Afternoon Temperature: 35°F
Sunny. Windy.
Evening Temperature: 32°F
Cloudy. Windy.
Monday, December 22nd, 2025
Overnight Temperature: 30°F
Cloudy. Windy at times.
Morning Temperature: 35°F
Cloudy. Windy.
Afternoon Temperature: 39°F
Cloudy. Wind 20 to 30 mph.
Evening Temperature: 39°F
Cloudy with a slight chance of showers. Wind 20 to 30 mph.
Tuesday, December 23rd, 2025
Overnight Temperature: 39°F
Cloudy with a slight chance of showers. Showers possibly mixed with wet flurries. Windy.
Morning Temperature: 41°F
A mix of cloud and sun. Windy.
Afternoon Temperature: 40°F
Cloudy. Windy.
Evening Temperature: 37°F
Cloudy. Windy.





 

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Overcast

 
This WeatherCity Weather Forecast for Lake Forest, 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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