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August 20th, 2025 :: 3:12 pm CDT   

Local Weather Report for
Mount Vernon
Illinois, United States

 Current Mount Vernon Weather Conditions Updated August 20th at 1:56 pm 
Overcast
Temperature:82°F Dew Point:68°F
Barometer:30.04 inHg Wind: 9 Mph
Humidity:61.8% Visibility:0M
 
 Mount Vernon Weather Forecast Summary  
 
Today
Aug 20th
Thursday
Aug 21st
Friday
Aug 22nd
Saturday
Aug 23rd
Sunday
Aug 24th
Cloudy Mostly Sunny Sunny Cloudy Sunny
84°F
80°F
63°F
82°F
63°F
83°F
64°F
77°F
56°F
 
 Mount Vernon Detailed Weather Forecast  
 
Wednesday, August 20th, 2025
Afternoon Temperature: 82°F
Mostly sunny. Slight chance of a thunderstorm. Windy at times.
Evening Temperature: 68°F
Clear.
Thursday, August 21st, 2025
Overnight Temperature: 63°F
Clear.
Morning Temperature: 76°F
Sunny with cloudy periods. Windy at times.
Afternoon Temperature: 77°F
Sunny with cloudy periods. Slight chance of a thunderstorm. Windy at times.
Evening Temperature: 69°F
Clear with cloudy periods.
Friday, August 22nd, 2025
Overnight Temperature: 63°F
Clear.
Morning Temperature: 77°F
Sunny. Windy at times.
Afternoon Temperature: 80°F
Sunny.
Evening Temperature: 67°F
Clear.
Saturday, August 23rd, 2025
Overnight Temperature: 65°F
Clear.
Morning Temperature: 78°F
A mix of cloud and sun.
Afternoon Temperature: 81°F
Cloudy.
Evening Temperature: 68°F
Clear.
Sunday, August 24th, 2025
Overnight Temperature: 64°F
Clear.
Morning Temperature: 72°F
Sunny. Windy at times.
Afternoon Temperature: 75°F
Sunny. Windy at times.
Evening Temperature: 59°F
Clear.
Monday, August 25th, 2025
Overnight Temperature: 54°F
Clear. Windy at times.
Morning Temperature: 63°F
Sunny with cloudy periods. Windy at times.
Afternoon Temperature: 69°F
Mostly sunny. Windy at times.
Evening Temperature: 55°F
A mix of cloudy and clear skies.
Tuesday, August 26th, 2025
Overnight Temperature: 50°F
Mostly clear.
Morning Temperature: 66°F
Sunny.
Afternoon Temperature: 72°F
Mostly sunny.
Evening Temperature: 57°F
Clear.
Wednesday, August 27th, 2025
Overnight Temperature: 53°F
Clear.
Morning Temperature: 70°F
Sunny.
Afternoon Temperature: 74°F
A mix of cloud and sun.
Evening Temperature: 60°F
Cloudy.
Thursday, August 28th, 2025
Overnight Temperature: 57°F
Cloudy.
Morning Temperature: 71°F
Cloudy.
Afternoon Temperature: 75°F
Cloudy.
Evening Temperature: 64°F
Cloudy.





 

  [ Local Weather Report ]
Centralia, IL 
1:55 PM  84°F
Overcast
 
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1:55 PM  84°F
Overcast
 
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1:55 PM  82°F
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1:55 PM  79°F
Overcast
 
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1:50 PM  81°F
Overcast
 
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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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