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July 15th, 2026 :: 11:19 pm CDT   

Local Weather Report for
Mount Vernon
Illinois, United States

 Current Mount Vernon Weather Conditions Updated July 15th at 9:56 pm 
Temperature:75°F Dew Point:73°F
Barometer:30.06 inHg Wind:calm
Humidity:94.1% Visibility:0M
 
 Mount Vernon Weather Forecast Summary  
 
Today
Jul 15th
Thursday
Jul 16th
Friday
Jul 17th
Saturday
Jul 18th
Sunday
Jul 19th
Sunny Mostly Sunny Thundershowers Mostly Sunny Mostly Sunny
88°F
88°F
73°F
85°F
74°F
90°F
73°F
85°F
72°F
 
 Mount Vernon Detailed Weather Forecast  
 
Thursday, July 16th, 2026
Overnight Temperature: 74°F
Clear. Slight chance of a thunderstorm.
Morning Temperature: 80°F
Sunny. Chance of a thunderstorm.
Afternoon Temperature: 88°F
Mostly sunny with showers likely. Chance of a thunderstorm.
Evening Temperature: 81°F
Mostly clear with a chance of showers or thundershowers.
Friday, July 17th, 2026
Overnight Temperature: 75°F
Mostly clear. Chance of a thunderstorm.
Morning Temperature: 79°F
Mostly sunny with a chance of showers or thundershowers.
Afternoon Temperature: 82°F
Mostly cloudy with a few showers. Chance of a thunderstorm. Windy at times.
Evening Temperature: 78°F
A mix of cloudy and clear skies with showers likely. Chance of a thunderstorm.
Saturday, July 18th, 2026
Overnight Temperature: 74°F
Clear with cloudy periods. Slight chance of a thunderstorm.
Morning Temperature: 78°F
Sunny with a chance of showers or thundershowers. Windy at times.
Afternoon Temperature: 89°F
Sunny. Chance of a thunderstorm. Windy at times.
Evening Temperature: 83°F
Mostly clear. Chance of a thunderstorm.
Sunday, July 19th, 2026
Overnight Temperature: 74°F
Clear with a slight chance of showers or thundershowers.
Morning Temperature: 77°F
Sunny with cloudy periods with a slight chance of showers or thundershowers.
Afternoon Temperature: 85°F
A mix of cloud and sun. Chance of a thunderstorm.
Evening Temperature: 80°F
Clear. Chance of a thunderstorm.
Monday, July 20th, 2026
Overnight Temperature: 73°F
Mostly clear.
Morning Temperature: 80°F
Sunny. Chance of a thunderstorm. Windy at times.
Afternoon Temperature: 93°F
Mostly sunny. Chance of a thunderstorm. Windy at times.
Evening Temperature: 85°F
Clear. Chance of a thunderstorm. Windy at times.
Tuesday, July 21st, 2026
Overnight Temperature: 74°F
Mostly clear with a chance of showers or thundershowers. Windy at times.
Morning Temperature: 69°F
Sunny with a chance of showers. Windy at times.
Afternoon Temperature: 77°F
Mostly sunny. Windy at times.
Evening Temperature: 69°F
Mostly clear.
Wednesday, July 22nd, 2026
Overnight Temperature: 61°F
Mostly clear.
Morning Temperature: 67°F
Mostly sunny.
Afternoon Temperature: 78°F
Sunny with cloudy periods.
Evening Temperature: 72°F
A mix of clear and cloudy skies.
Thursday, July 23rd, 2026
Overnight Temperature: 64°F
Clear.
Morning Temperature: 69°F
Sunny with cloudy periods.
Afternoon Temperature: 81°F
Sunny with cloudy periods. Chance of a thunderstorm.
Evening Temperature: 76°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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