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January 20th, 2026 :: 4:54 am CST   

Local Weather Report for
Mascoutah
Illinois, United States

 Current Mascoutah Weather Conditions Updated January 20th at 3:55 am 
Overcast
Temperature:9°F Dew Point:3°F
Barometer:30.45 inHg Wind:calm
Humidity:75.1% Visibility:0M
 
 Mascoutah Weather Forecast Summary  
 
Today
Jan 20th
Wednesday
Jan 21st
Thursday
Jan 22nd
Friday
Jan 23rd
Saturday
Jan 24th
Mix of Cloud and Sun Cloudy Cloudy Cloudy Cloudy
35°F
44°F
30°F
37°F
24°F
23°F
9°F
18°F
9°F
 
 Mascoutah Detailed Weather Forecast  
 
Tuesday, January 20th, 2026
Morning Temperature: 27°F
A mix of cloud and sun. Windy at times.
Afternoon Temperature: 29°F
Sunny. Windy at times.
Evening Temperature: 29°F
A mix of cloudy and clear skies. Windy at times.
Wednesday, January 21st, 2026
Overnight Temperature: 32°F
Cloudy. Windy at times.
Morning Temperature: 40°F
Sunny with cloudy periods. Windy at times.
Afternoon Temperature: 34°F
Sunny.
Evening Temperature: 31°F
A mix of clear and cloudy skies.
Thursday, January 22nd, 2026
Overnight Temperature: 29°F
Cloudy.
Morning Temperature: 34°F
Cloudy. Windy at times.
Afternoon Temperature: 31°F
Cloudy.
Evening Temperature: 26°F
Cloudy. Windy at times.
Friday, January 23rd, 2026
Overnight Temperature: 20°F
Cloudy. Windy.
Morning Temperature: 12°F
Cloudy. Windy.
Afternoon Temperature: 11°F
Cloudy. Windy at times.
Evening Temperature: 10°F
Cloudy. Windy at times.
Saturday, January 24th, 2026
Overnight Temperature: 9°F
Cloudy. Windy at times.
Morning Temperature: 14°F
Cloudy. Windy at times.
Afternoon Temperature: 18°F
Cloudy.
Evening Temperature: 16°F
Cloudy.
Sunday, January 25th, 2026
Overnight Temperature: 15°F
Cloudy.
Morning Temperature: 22°F
Sunny with cloudy periods. Windy at times.
Afternoon Temperature: 19°F
Sunny.
Evening Temperature: 15°F
Clear.
Monday, January 26th, 2026
Overnight Temperature: 13°F
Clear.
Morning Temperature: 30°F
Sunny. Windy.
Afternoon Temperature: 33°F
Sunny. Windy at times.
Evening Temperature: 27°F
Clear. Windy at times.
Tuesday, January 27th, 2026
Overnight Temperature: 26°F
Clear with cloudy periods.
Morning Temperature: 39°F
Sunny with cloudy periods.
Afternoon Temperature: 36°F
Sunny.
Evening Temperature: 33°F
Cloudy.
Wednesday, January 28th, 2026
Overnight Temperature: 28°F
Clear with cloudy periods. Windy at times.
Morning Temperature: 30°F
Sunny. Windy at times.
Afternoon Temperature: 25°F
Sunny.
Evening Temperature: 22°F
Cloudy.





 

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This WeatherCity Weather Forecast for Mascoutah, 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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