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July 27th, 2026 :: 3:39 pm CDT   

Local Weather Report for
Mount Vernon
Illinois, United States

 Current Mount Vernon Weather Conditions Updated July 27th at 2:56 pm 
Temperature:97°F Dew Point:77°F
Barometer:29.83 inHg Wind:N 19 Mph
Humidity:53.3% Visibility:0M
 
 Mount Vernon Weather Forecast Summary  
 
Today
Jul 27th
Tuesday
Jul 28th
Wednesday
Jul 29th
Thursday
Jul 30th
Friday
Jul 31st
Mostly Sunny Mostly Sunny Sunny Mostly Sunny Showers
94°F
88°F
75°F
82°F
63°F
86°F
64°F
73°F
66°F
 
 Mount Vernon Detailed Weather Forecast  
 
Monday, July 27th, 2026
Afternoon Temperature: 94°F
Sunny. Chance of a thunderstorm. Windy at times.
Evening Temperature: 88°F
A mix of clear and cloudy skies. Chance of a thunderstorm.
Tuesday, July 28th, 2026
Overnight Temperature: 78°F
Mostly clear. Chance of a thunderstorm.
Morning Temperature: 80°F
Mostly sunny. Chance of a thunderstorm.
Afternoon Temperature: 85°F
A mix of cloud and sun. Chance of a thunderstorm. Windy at times.
Evening Temperature: 78°F
Mostly clear. Chance of a thunderstorm.
Wednesday, July 29th, 2026
Overnight Temperature: 67°F
Clear.
Morning Temperature: 69°F
Sunny.
Afternoon Temperature: 82°F
Sunny. Windy at times.
Evening Temperature: 72°F
Clear.
Thursday, July 30th, 2026
Overnight Temperature: 65°F
Clear.
Morning Temperature: 72°F
Mostly sunny.
Afternoon Temperature: 86°F
Mostly sunny.
Evening Temperature: 78°F
A mix of cloudy and clear skies. Slight chance of a thunderstorm.
Friday, July 31st, 2026
Overnight Temperature: 72°F
A mix of cloudy and clear skies.
Morning Temperature: 69°F
Cloudy with showers likely.
Afternoon Temperature: 68°F
Mostly cloudy with a few showers. Windy at times.
Evening Temperature: 68°F
A mix of cloudy and clear skies with a chance of showers. Windy at times.
Saturday, August 1st, 2026
Overnight Temperature: 64°F
A mix of clear and cloudy skies with a chance of showers.
Morning Temperature: 65°F
A mix of cloud and sun with a chance of showers. Windy at times.
Afternoon Temperature: 72°F
A mix of cloud and sun with a chance of showers. Windy at times.
Evening Temperature: 67°F
Clear with cloudy periods with a slight chance of showers. Windy at times.
Sunday, August 2nd, 2026
Overnight Temperature: 63°F
A mix of clear and cloudy skies. Windy at times.
Morning Temperature: 66°F
A mix of sun and cloud. Windy at times.
Afternoon Temperature: 81°F
Mostly sunny. Slight chance of a thunderstorm. Windy at times.
Evening Temperature: 73°F
Clear. Chance of a thunderstorm.
Monday, August 3rd, 2026
Overnight Temperature: 67°F
Clear.
Morning Temperature: 71°F
Sunny.
Afternoon Temperature: 83°F
Sunny. Slight chance of a thunderstorm. Windy at times.
Evening Temperature: 76°F
Clear. Chance of a thunderstorm.
Tuesday, August 4th, 2026
Overnight Temperature: 70°F
Clear.
Morning Temperature: 75°F
Sunny. Slight chance of a thunderstorm.
Afternoon Temperature: 87°F
A mix of sun and cloud. Chance of a thunderstorm.
Evening Temperature: 81°F
Clear with cloudy periods. 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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