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July 21st, 2026 :: 10:09 am CDT   

Local Weather Report for
Mount Vernon
Illinois, United States

 Current Mount Vernon Weather Conditions Updated July 21st at 8:56 am 
Temperature:84°F Dew Point:77°F
Barometer:29.83 inHg Wind:N 19 Mph
Humidity:79.1% Visibility:0M
 
 Mount Vernon Weather Forecast Summary  
 
Today
Jul 21st
Wednesday
Jul 22nd
Thursday
Jul 23rd
Friday
Jul 24th
Saturday
Jul 25th
Mostly Sunny Mostly Sunny Mostly Sunny Showers Mix of Sun and Cloud
87°F
75°F
63°F
75°F
56°F
65°F
62°F
79°F
62°F
 
 Mount Vernon Detailed Weather Forecast  
 
Tuesday, July 21st, 2026
Afternoon Temperature: 87°F
Mostly sunny with a slight chance of showers or thundershowers. Windy at times.
Evening Temperature: 75°F
Mostly clear. Windy at times.
Wednesday, July 22nd, 2026
Overnight Temperature: 65°F
Clear.
Morning Temperature: 68°F
Mostly sunny. Windy at times.
Afternoon Temperature: 73°F
Mostly sunny. Windy at times.
Evening Temperature: 66°F
Clear with cloudy periods. Windy at times.
Thursday, July 23rd, 2026
Overnight Temperature: 58°F
Clear.
Morning Temperature: 62°F
Mostly sunny.
Afternoon Temperature: 74°F
Mostly sunny.
Evening Temperature: 69°F
A mix of clear and cloudy skies.
Friday, July 24th, 2026
Overnight Temperature: 64°F
Mostly cloudy.
Morning Temperature: 62°F
Cloudy with a few showers.
Afternoon Temperature: 64°F
Cloudy with a few showers.
Evening Temperature: 64°F
Cloudy with a chance of showers.
Saturday, July 25th, 2026
Overnight Temperature: 62°F
A mix of cloudy and clear skies with a chance of showers.
Morning Temperature: 66°F
A mix of cloud and sun.
Afternoon Temperature: 77°F
Sunny with cloudy periods.
Evening Temperature: 75°F
Clear. Chance of a thunderstorm.
Sunday, July 26th, 2026
Overnight Temperature: 71°F
Mostly clear.
Morning Temperature: 76°F
Mostly sunny. Chance of a thunderstorm.
Afternoon Temperature: 92°F
Sunny. Chance of a thunderstorm. Windy at times.
Evening Temperature: 86°F
Clear. Chance of a thunderstorm. Windy at times.
Monday, July 27th, 2026
Overnight Temperature: 80°F
Mostly clear. Chance of a thunderstorm. Windy at times.
Morning Temperature: 83°F
A mix of sun and cloud. Chance of a thunderstorm. Windy.
Afternoon Temperature: 91°F
Sunny. Chance of a thunderstorm. Windy.
Evening Temperature: 85°F
Clear. Chance of a thunderstorm. Windy at times.
Tuesday, July 28th, 2026
Overnight Temperature: 74°F
Clear. Chance of a thunderstorm.
Morning Temperature: 74°F
Sunny.
Afternoon Temperature: 86°F
Sunny. Chance of a thunderstorm.
Evening Temperature: 80°F
Clear with cloudy periods. Chance of a thunderstorm.
Wednesday, July 29th, 2026
Overnight Temperature: 71°F
Mostly clear. Slight chance of a thunderstorm.
Morning Temperature: 74°F
A mix of cloud and sun.
Afternoon Temperature: 86°F
Sunny with cloudy periods. Chance of a thunderstorm.
Evening Temperature: 80°F
Clear. Chance of a thunderstorm.





 

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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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