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June 25th, 2026 :: 1:13 am CDT   

Local Weather Report for
Mount Vernon
Illinois, United States

 Current Mount Vernon Weather Conditions Updated June 24th at 11:56 pm 
Overcast
Temperature:70°F Dew Point:66°F
Barometer:30.01 inHg Wind:calm
Humidity:88.3% Visibility:0M
 
 Mount Vernon Weather Forecast Summary  
 
Today
Jun 25th
Friday
Jun 26th
Saturday
Jun 27th
Sunday
Jun 28th
Monday
Jun 29th
Thundershowers Thundershowers Thundershowers Sunny Sunny
84°F
82°F
70°F
81°F
71°F
91°F
72°F
93°F
74°F
 
 Mount Vernon Detailed Weather Forecast  
 
Thursday, June 25th, 2026
Overnight Temperature: 67°F
Clear with a slight chance of showers.
Morning Temperature: 73°F
Mostly sunny with a slight chance of showers or thundershowers.
Afternoon Temperature: 84°F
A mix of sun and cloud with showers likely. Chance of a thunderstorm.
Evening Temperature: 71°F
Mostly cloudy with a few showers. Slight chance of a thunderstorm.
Friday, June 26th, 2026
Overnight Temperature: 70°F
Mostly cloudy with periods of rain. Slight chance of a thunderstorm. Windy at times.
Morning Temperature: 74°F
Cloudy with showers likely. Chance of a thunderstorm. Windy at times.
Afternoon Temperature: 81°F
Mostly cloudy with a chance of showers or thundershowers.
Evening Temperature: 74°F
Clear with cloudy periods with showers likely. Chance of a thunderstorm.
Saturday, June 27th, 2026
Overnight Temperature: 71°F
Clear with cloudy periods with showers likely. Slight chance of a thunderstorm.
Morning Temperature: 74°F
Mostly cloudy with showers likely. Chance of a thunderstorm. Windy at times.
Afternoon Temperature: 81°F
A mix of sun and cloud with a chance of showers or thundershowers. Windy.
Evening Temperature: 74°F
Mostly clear. Chance of a thunderstorm.
Sunday, June 28th, 2026
Overnight Temperature: 72°F
Clear. Chance of a thunderstorm.
Morning Temperature: 79°F
Sunny. Chance of a thunderstorm. Windy at times.
Afternoon Temperature: 91°F
Sunny. Chance of a thunderstorm. Windy at times.
Evening Temperature: 83°F
Clear. Chance of a thunderstorm.
Monday, June 29th, 2026
Overnight Temperature: 75°F
Clear. Chance of a thunderstorm.
Morning Temperature: 80°F
Sunny. Chance of a thunderstorm.
Afternoon Temperature: 92°F
Sunny. Chance of a thunderstorm.
Evening Temperature: 85°F
Clear. Chance of a thunderstorm.
Tuesday, June 30th, 2026
Overnight Temperature: 77°F
Clear. Chance of a thunderstorm.
Morning Temperature: 83°F
Mostly sunny. Chance of a thunderstorm.
Afternoon Temperature: 93°F
Sunny. Chance of a thunderstorm.
Evening Temperature: 85°F
Clear. Chance of a thunderstorm.
Wednesday, July 1st, 2026
Overnight Temperature: 78°F
Clear. Chance of a thunderstorm.
Morning Temperature: 83°F
Mostly sunny with a slight chance of showers or thundershowers.
Afternoon Temperature: 93°F
Sunny with a slight chance of showers or thundershowers.
Evening Temperature: 84°F
Mostly clear. Chance of a thunderstorm.
Thursday, July 2nd, 2026
Overnight Temperature: 77°F
Clear. Chance of a thunderstorm.
Morning Temperature: 83°F
Sunny. Chance of a thunderstorm.
Afternoon Temperature: 93°F
Sunny. Chance of a thunderstorm.
Evening Temperature: 85°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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