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June 23rd, 2026 :: 1:00 am CDT   

Local Weather Report for
Mount Vernon
Illinois, United States

 Current Mount Vernon Weather Conditions Updated June 22nd at 11:45 pm 
mist
Temperature:59°F Dew Point:57°F
Barometer:30.12 inHg Wind:calm
Humidity:93.7% Visibility:0M
 
 Mount Vernon Weather Forecast Summary  
 
Today
Jun 23rd
Wednesday
Jun 24th
Thursday
Jun 25th
Friday
Jun 26th
Saturday
Jun 27th
Sunny Mostly Sunny Thundershowers Thundershowers Thundershowers
79°F
81°F
60°F
84°F
68°F
83°F
70°F
88°F
70°F
 
 Mount Vernon Detailed Weather Forecast  
 
Tuesday, June 23rd, 2026
Overnight Temperature: 62°F
Clear with cloudy periods.
Morning Temperature: 64°F
Sunny.
Afternoon Temperature: 77°F
Sunny.
Evening Temperature: 71°F
Clear.
Wednesday, June 24th, 2026
Overnight Temperature: 61°F
Mostly clear.
Morning Temperature: 68°F
Mostly sunny.
Afternoon Temperature: 80°F
Sunny with cloudy periods. Slight chance of a thunderstorm.
Evening Temperature: 75°F
Mostly clear. Chance of a thunderstorm.
Thursday, June 25th, 2026
Overnight Temperature: 69°F
Clear with cloudy periods. Slight chance of a thunderstorm.
Morning Temperature: 75°F
Mostly sunny with a chance of showers or thundershowers.
Afternoon Temperature: 84°F
Mostly sunny with showers likely. Chance of a thunderstorm.
Evening Temperature: 76°F
A mix of cloudy and clear skies with showers likely. Chance of a thunderstorm.
Friday, June 26th, 2026
Overnight Temperature: 70°F
Cloudy with rain, at times heavy. Slight chance of a thunderstorm.
Morning Temperature: 72°F
Mostly cloudy with periods of rain. Chance of a thunderstorm.
Afternoon Temperature: 82°F
Sunny with cloudy periods with a chance of showers or thundershowers. Windy at times.
Evening Temperature: 73°F
Cloudy with a few showers. Chance of a thunderstorm. Windy at times.
Saturday, June 27th, 2026
Overnight Temperature: 71°F
A mix of clear and cloudy skies with a few showers. Slight chance of a thunderstorm.
Morning Temperature: 76°F
A mix of sun and cloud with showers likely. Chance of a thunderstorm. Windy at times.
Afternoon Temperature: 88°F
Mostly sunny. Chance of a thunderstorm. Windy at times.
Evening Temperature: 80°F
Clear with cloudy periods. Chance of a thunderstorm. Windy at times.
Sunday, June 28th, 2026
Overnight Temperature: 73°F
Mostly clear with a slight chance of showers or thundershowers.
Morning Temperature: 79°F
Mostly sunny. Chance of a thunderstorm. Windy at times.
Afternoon Temperature: 89°F
Sunny. Chance of a thunderstorm. Windy at times.
Evening Temperature: 79°F
Clear. Chance of a thunderstorm. Windy at times.
Monday, June 29th, 2026
Overnight Temperature: 74°F
Clear. Chance of a thunderstorm.
Morning Temperature: 80°F
Sunny. Chance of a thunderstorm. Windy at times.
Afternoon Temperature: 92°F
Sunny with cloudy periods. Chance of a thunderstorm. Windy at times.
Evening Temperature: 85°F
Clear. Chance of a thunderstorm.
Tuesday, June 30th, 2026
Overnight Temperature: 77°F
Clear. Chance of a thunderstorm.
Morning Temperature: 82°F
Sunny. Chance of a thunderstorm.
Afternoon Temperature: 92°F
Sunny. Chance of a thunderstorm.
Evening Temperature: 85°F
Mostly 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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