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January 12th, 2026 :: 4:30 pm CST   

Local Weather Report for
Lake Forest
Illinois, United States

 Lake Forest Weather Forecast Summary  
 
Today
Jan 12th
Tuesday
Jan 13th
Wednesday
Jan 14th
Thursday
Jan 15th
Friday
Jan 16th
Cloudy Cloudy Mix of rain and snow Cloudy Cloudy
39°F
44°F
38°F
37°F
23°F
26°F
23°F
33°F
27°F
 
 Lake Forest Detailed Weather Forecast  
 
Monday, January 12th, 2026
Evening Temperature: 37°F
Cloudy. Windy.
Tuesday, January 13th, 2026
Overnight Temperature: 39°F
Cloudy. Wind 20 to 30 mph.
Morning Temperature: 42°F
Cloudy. Wind 20 to 30 mph.
Afternoon Temperature: 42°F
Cloudy. Windy.
Evening Temperature: 40°F
Cloudy. Windy.
Wednesday, January 14th, 2026
Overnight Temperature: 34°F
Cloudy with a slight chance of showers or wet flurries. Wind 25 to 40 mph.
Morning Temperature: 24°F
Cloudy with a chance of flurries. Wind 35 to 45 mph.
Afternoon Temperature: 25°F
Cloudy with a chance of flurries. Wind 40 to 50 mph.
Evening Temperature: 25°F
Cloudy with flurries likely. Wind 40 to 50 mph.
Thursday, January 15th, 2026
Overnight Temperature: 24°F
Cloudy with a chance of flurries. Wind 35 to 45 mph.
Morning Temperature: 24°F
Cloudy with a chance of flurries. Wind 25 to 40 mph.
Afternoon Temperature: 25°F
Sunny with cloudy periods. Windy at times.
Evening Temperature: 26°F
Cloudy. Windy.
Friday, January 16th, 2026
Overnight Temperature: 28°F
Cloudy. Windy.
Morning Temperature: 30°F
Cloudy. Wind 20 to 30 mph.
Afternoon Temperature: 33°F
Cloudy. Windy.
Evening Temperature: 33°F
Cloudy. Windy.
Saturday, January 17th, 2026
Overnight Temperature: 25°F
Cloudy with a chance of flurries. Windy.
Morning Temperature: 18°F
Cloudy with a chance of flurries. Wind 20 to 30 mph.
Afternoon Temperature: 14°F
Cloudy with a chance of flurries. Wind 20 to 30 mph.
Evening Temperature: 11°F
Cloudy with a chance of flurries. Wind 20 to 30 mph.
Sunday, January 18th, 2026
Overnight Temperature: 8°F
Cloudy with a slight chance of flurries. Wind 20 to 30 mph.
Morning Temperature: 12°F
Cloudy. Windy.
Afternoon Temperature: 17°F
Cloudy. Windy.
Evening Temperature: 22°F
Cloudy. Windy.
Monday, January 19th, 2026
Overnight Temperature: 27°F
Cloudy. Wind 25 to 40 mph.
Morning Temperature: 30°F
Cloudy. Wind 40 to 50 mph.
Afternoon Temperature: 27°F
A mix of cloud and sun. Wind 35 to 45 mph.
Evening Temperature: 26°F
Cloudy. Wind 25 to 40 mph.
Tuesday, January 20th, 2026
Overnight Temperature: 28°F
Cloudy. Windy.
Morning Temperature: 29°F
A mix of cloud and sun. Windy.
Afternoon Temperature: 24°F
A mix of cloud and sun. Windy.
Evening Temperature: 22°F
Cloudy. Windy.





 

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Mostly Sunny

 
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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