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June 28th, 2026 :: 4:35 am CDT   

Local Weather Report for
Mount Vernon
Illinois, United States

 Current Mount Vernon Weather Conditions Updated June 28th at 3:56 am 
thunderstorm
Temperature:73°F Dew Point:73°F
Barometer:29.89 inHg Wind:N 6 Mph
Humidity:100.0% Visibility:0M
 
 Mount Vernon Weather Forecast Summary  
 
Today
Jun 28th
Monday
Jun 29th
Tuesday
Jun 30th
Wednesday
Jul 1st
Thursday
Jul 2nd
Mostly Sunny Mostly Sunny Mostly Sunny Sunny Thundershowers
90°F
92°F
74°F
94°F
74°F
94°F
75°F
94°F
73°F
 
 Mount Vernon Detailed Weather Forecast  
 
Sunday, June 28th, 2026
Morning Temperature: 77°F
Mostly sunny with a chance of showers or thundershowers.
Afternoon Temperature: 89°F
Sunny. Chance of a thunderstorm. Windy at times.
Evening Temperature: 82°F
Clear. Chance of a thunderstorm.
Monday, June 29th, 2026
Overnight Temperature: 75°F
Mostly clear. Chance of a thunderstorm.
Morning Temperature: 80°F
Mostly sunny. Chance of a thunderstorm. Windy at times.
Afternoon Temperature: 91°F
Mostly sunny. Chance of a thunderstorm. Windy at times.
Evening Temperature: 83°F
Clear. Chance of a thunderstorm. Windy at times.
Tuesday, June 30th, 2026
Overnight Temperature: 75°F
Clear. Chance of a thunderstorm.
Morning Temperature: 80°F
Mostly sunny. Chance of a thunderstorm.
Afternoon Temperature: 93°F
Sunny. Chance of a thunderstorm. Windy at times.
Evening Temperature: 85°F
Clear. Chance of a thunderstorm.
Wednesday, July 1st, 2026
Overnight Temperature: 76°F
Clear. Chance of a thunderstorm.
Morning Temperature: 82°F
Sunny. Chance of a thunderstorm.
Afternoon Temperature: 93°F
Sunny. Chance of a thunderstorm.
Evening Temperature: 86°F
Clear. Chance of a thunderstorm.
Thursday, July 2nd, 2026
Overnight Temperature: 77°F
Mostly clear with a slight chance of showers or thundershowers.
Morning Temperature: 84°F
Mostly sunny with a chance of showers or thundershowers.
Afternoon Temperature: 94°F
Mostly sunny with a chance of showers or thundershowers.
Evening Temperature: 75°F
A mix of cloudy and clear skies with showers likely.
Friday, July 3rd, 2026
Overnight Temperature: 73°F
Clear with cloudy periods with a chance of showers. Slight chance of a thunderstorm.
Morning Temperature: 79°F
Mostly sunny with a slight chance of showers or thundershowers.
Afternoon Temperature: 91°F
Mostly sunny. Chance of a thunderstorm.
Evening Temperature: 83°F
Clear with cloudy periods. Chance of a thunderstorm.
Saturday, July 4th, 2026
Overnight Temperature: 77°F
Mostly clear. Chance of a thunderstorm.
Morning Temperature: 82°F
Mostly sunny. Chance of a thunderstorm.
Afternoon Temperature: 93°F
Mostly sunny. Chance of a thunderstorm.
Evening Temperature: 85°F
Mostly clear. Chance of a thunderstorm.
Sunday, July 5th, 2026
Overnight Temperature: 76°F
Clear with a chance of showers or thundershowers.
Morning Temperature: 82°F
Sunny with a slight chance of showers or thundershowers.
Afternoon Temperature: 92°F
Mostly sunny with a slight chance of showers or thundershowers.
Evening Temperature: 82°F
Mostly clear with a slight chance of showers or thundershowers.
Monday, July 6th, 2026
Overnight Temperature: 74°F
Mostly clear with a slight chance of showers or thundershowers.
Morning Temperature: 80°F
Sunny. Chance of a thunderstorm.
Afternoon Temperature: 92°F
Sunny with cloudy periods. Chance of a thunderstorm.
Evening Temperature: 84°F
A mix of cloudy and clear skies with a chance of showers or thundershowers.





 

  [ Local Weather Report ]
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3:55 AM  73°F
thunderstorm
 
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thunderstorm
 
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3:55 AM  75°F
heavy thunderstorm with rain
 
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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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