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January 15th, 2026 :: 12:08 am CST   

Local Weather Report for
Prospect Heights
Illinois, United States

 Current Prospect Heights Weather Conditions Updated January 14th at 10:52 pm 
Overcast
Temperature:18°F Dew Point:7°F
Barometer:30.04 inHg Wind:N 26 Mph
Humidity:59.9% Visibility:0M
 
 Prospect Heights Weather Forecast Summary  
 
Today
Jan 15th
Friday
Jan 16th
Saturday
Jan 17th
Sunday
Jan 18th
Monday
Jan 19th
Cloudy Cloudy Cloudy Cloudy Cloudy
27°F
36°F
26°F
23°F
18°F
20°F
16°F
23°F
13°F
 
 Prospect Heights Detailed Weather Forecast  
 
Thursday, January 15th, 2026
Overnight Temperature: 21°F
Cloudy. Wind 20 to 30 mph.
Morning Temperature: 22°F
Cloudy. Windy.
Afternoon Temperature: 26°F
Cloudy. Windy at times.
Evening Temperature: 26°F
Cloudy. Windy.
Friday, January 16th, 2026
Overnight Temperature: 28°F
Cloudy with a chance of flurries. Wind 20 to 30 mph.
Morning Temperature: 33°F
Cloudy. Wind 20 to 30 mph.
Afternoon Temperature: 35°F
A mix of cloud and sun. Windy.
Evening Temperature: 30°F
Cloudy with a chance of flurries or showers. Windy.
Saturday, January 17th, 2026
Overnight Temperature: 22°F
Cloudy with a chance of flurries. Wind 20 to 30 mph.
Morning Temperature: 19°F
Cloudy. Windy.
Afternoon Temperature: 18°F
Cloudy. Windy.
Evening Temperature: 18°F
Cloudy with a slight chance of flurries. Windy.
Sunday, January 18th, 2026
Overnight Temperature: 17°F
Cloudy with a chance of flurries. Windy.
Morning Temperature: 18°F
Cloudy. Windy.
Afternoon Temperature: 19°F
Cloudy. Windy.
Evening Temperature: 20°F
Cloudy. Windy.
Monday, January 19th, 2026
Overnight Temperature: 22°F
Cloudy. Windy.
Morning Temperature: 20°F
Cloudy. Wind 20 to 30 mph.
Afternoon Temperature: 17°F
Sunny with cloudy periods. Wind 20 to 30 mph.
Evening Temperature: 14°F
Clear with cloudy periods. Windy.
Tuesday, January 20th, 2026
Overnight Temperature: 11°F
Clear. Windy.
Morning Temperature: 15°F
Cloudy. Windy.
Afternoon Temperature: 18°F
Cloudy. Windy.
Evening Temperature: 20°F
Cloudy. Windy.
Wednesday, January 21st, 2026
Overnight Temperature: 19°F
Cloudy with a slight chance of flurries. Windy at times.
Morning Temperature: 18°F
Cloudy with a slight chance of flurries. Wind 20 to 30 mph.
Afternoon Temperature: 18°F
Sunny. Windy.
Evening Temperature: 18°F
Cloudy. Windy.
Thursday, January 22nd, 2026
Overnight Temperature: 21°F
Cloudy. Windy.
Morning Temperature: 27°F
Cloudy. Windy.
Afternoon Temperature: 30°F
Cloudy. Windy at times.
Evening Temperature: 27°F
A mix of cloudy and clear skies. Windy.





 

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This WeatherCity Weather Forecast for Prospect Heights, 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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