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September 12th, 2025 :: 8:21 am CDT   

Local Weather Report for
Mount Vernon
Illinois, United States

 Current Mount Vernon Weather Conditions Updated September 12th at 6:56 am 
mist
Temperature:14°C Dew Point:14°C
Barometer:102.2 kPa Wind:calm
Humidity:100.0% Visibility:0 Km
 
 Mount Vernon Weather Forecast Summary  
 
Today
Sep 12th
Saturday
Sep 13th
Sunday
Sep 14th
Monday
Sep 15th
Tuesday
Sep 16th
Cloudy Cloudy Cloudy Thundershowers Thundershowers
34°C
36°C
19°C
38°C
19°C
38°C
20°C
36°C
20°C
 
 Mount Vernon Detailed Weather Forecast  
 
Friday, September 12th, 2025
Morning Temperature: 29°C
Sunny.
Afternoon Temperature: 32°C
Cloudy. Windy at times.
Evening Temperature: 22°C
Cloudy.
Saturday, September 13th, 2025
Overnight Temperature: 20°C
A mix of cloudy and clear skies.
Morning Temperature: 29°C
Sunny with cloudy periods. Windy at times.
Afternoon Temperature: 34°C
Sunny with cloudy periods.
Evening Temperature: 23°C
Cloudy with a slight chance of showers.
Sunday, September 14th, 2025
Overnight Temperature: 19°C
Cloudy with a chance of showers.
Morning Temperature: 31°C
Cloudy with a slight chance of showers or thundershowers.
Afternoon Temperature: 35°C
A mix of cloud and sun. Chance of a thunderstorm.
Evening Temperature: 22°C
Cloudy with a chance of showers.
Monday, September 15th, 2025
Overnight Temperature: 20°C
A mix of clear and cloudy skies.
Morning Temperature: 31°C
Mostly sunny. Chance of a thunderstorm.
Afternoon Temperature: 35°C
Sunny with cloudy periods with a slight chance of showers or thundershowers.
Evening Temperature: 23°C
Cloudy with showers likely. Slight chance of a thunderstorm.
Tuesday, September 16th, 2025
Overnight Temperature: 21°C
Cloudy with a chance of showers.
Morning Temperature: 30°C
Cloudy with a chance of showers. Slight chance of a thunderstorm.
Afternoon Temperature: 34°C
A mix of cloud and sun. Chance of a thunderstorm.
Evening Temperature: 21°C
Cloudy with showers likely. Windy at times.
Wednesday, September 17th, 2025
Overnight Temperature: 21°C
Cloudy with a chance of showers.
Morning Temperature: 29°C
Sunny with cloudy periods with a chance of showers. Slight chance of a thunderstorm.
Afternoon Temperature: 34°C
A mix of cloud and sun. Slight chance of a thunderstorm.
Evening Temperature: 24°C
Cloudy.
Thursday, September 18th, 2025
Overnight Temperature: 20°C
A mix of cloudy and clear skies with a slight chance of showers.
Morning Temperature: 31°C
Cloudy. Chance of a thunderstorm.
Afternoon Temperature: 33°C
Cloudy with a slight chance of showers or thundershowers.
Evening Temperature: 21°C
Cloudy with showers likely. Windy at times.
Friday, September 19th, 2025
Overnight Temperature: 20°C
A mix of cloudy and clear skies with a chance of showers.
Morning Temperature: 28°C
A mix of cloud and sun. Slight chance of a thunderstorm.
Afternoon Temperature: 32°C
Sunny. Slight chance of a thunderstorm. Windy at times.
Evening Temperature: 19°C
Cloudy with showers likely. Windy at times.
Saturday, September 20th, 2025
Overnight Temperature: 18°C
A mix of cloudy and clear skies with a chance of showers.
Morning Temperature: 26°C
Sunny.
Afternoon Temperature: 29°C
Sunny with cloudy periods.
Evening Temperature: 20°C
Clear.





 

  [ Local Weather Report ]
Centralia, IL 
6:55 AM  15°C
Overcast
 
Wamac, IL 
6:55 AM  15°C
Overcast
 
Benton, IL 
 
Salem, IL 
6:55 AM  19°C
 
 
Mcleansboro, IL 
 
Fairfield, IL 
6:55 AM  16°C
 
 
Christopher, IL 
 
Nashville, IL 
 
Orient, IL 
6:45 AM  19°C
Mostly Cloudy
 
Du Quoin, IL 

This WeatherCity Weather Forecast for Mount Vernon, 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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