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July 12th, 2026 :: 8:33 pm CDT   

Local Weather Report for
Mount Vernon
Illinois, United States

 Mount Vernon Weather Forecast Summary  
 
Today
Jul 12th
Monday
Jul 13th
Tuesday
Jul 14th
Wednesday
Jul 15th
Thursday
Jul 16th
Sunny Sunny Sunny Mostly Sunny Mostly Sunny
83°F
83°F
65°F
86°F
69°F
87°F
71°F
86°F
72°F
 
 Mount Vernon Detailed Weather Forecast  
 
Sunday, July 12th, 2026
Evening Temperature: 75°F
Clear. Chance of a thunderstorm. Windy at times.
Monday, July 13th, 2026
Overnight Temperature: 67°F
Clear.
Morning Temperature: 70°F
Sunny. Windy at times.
Afternoon Temperature: 82°F
Sunny. Chance of a thunderstorm. Windy at times.
Evening Temperature: 76°F
Clear. Chance of a thunderstorm. Windy at times.
Tuesday, July 14th, 2026
Overnight Temperature: 70°F
Clear. Slight chance of a thunderstorm.
Morning Temperature: 75°F
Sunny. Chance of a thunderstorm.
Afternoon Temperature: 86°F
Sunny. Chance of a thunderstorm. Windy at times.
Evening Temperature: 79°F
Clear. Chance of a thunderstorm.
Wednesday, July 15th, 2026
Overnight Temperature: 71°F
Clear. Slight chance of a thunderstorm.
Morning Temperature: 77°F
Sunny. Chance of a thunderstorm.
Afternoon Temperature: 86°F
A mix of sun and cloud. Chance of a thunderstorm.
Evening Temperature: 79°F
Mostly clear. Chance of a thunderstorm.
Thursday, July 16th, 2026
Overnight Temperature: 72°F
Clear. Slight chance of a thunderstorm.
Morning Temperature: 78°F
Sunny with a slight chance of showers or thundershowers.
Afternoon Temperature: 86°F
A mix of sun and cloud with a slight chance of showers or thundershowers.
Evening Temperature: 81°F
Clear with a slight chance of showers or thundershowers.
Friday, July 17th, 2026
Overnight Temperature: 74°F
Clear. Slight chance of a thunderstorm.
Morning Temperature: 80°F
Mostly sunny with a chance of showers or thundershowers.
Afternoon Temperature: 88°F
Sunny with a chance of showers or thundershowers. Windy at times.
Evening Temperature: 82°F
Clear with a slight chance of showers or thundershowers.
Saturday, July 18th, 2026
Overnight Temperature: 74°F
Clear.
Morning Temperature: 78°F
Mostly sunny. Chance of a thunderstorm. Windy at times.
Afternoon Temperature: 86°F
Sunny with cloudy periods. Chance of a thunderstorm. Windy at times.
Evening Temperature: 79°F
A mix of clear and cloudy skies with a chance of showers or thundershowers. Windy at times.
Sunday, July 19th, 2026
Overnight Temperature: 70°F
Clear with a chance of showers. Slight chance of a thunderstorm.
Morning Temperature: 73°F
Sunny. Windy at times.
Afternoon Temperature: 81°F
Sunny. Slight chance of a thunderstorm. Windy at times.
Evening Temperature: 72°F
Mostly clear.
Monday, July 20th, 2026
Overnight Temperature: 65°F
Mostly clear.
Morning Temperature: 70°F
A mix of cloud and sun.
Afternoon Temperature: 81°F
A mix of cloud and sun.
Evening Temperature: 74°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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