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May 28th, 2026 :: 6:55 pm CDT   

Local Weather Report for
Mount Vernon
Illinois, United States

 Current Mount Vernon Weather Conditions Updated May 28th at 5:56 pm 
Temperature:84°F Dew Point:64°F
Barometer:30.01 inHg Wind:N 13 Mph
Humidity:51.5% Visibility:0M
 
 Mount Vernon Weather Forecast Summary  
 
Today
May 28th
Friday
May 29th
Saturday
May 30th
Sunday
May 31st
Monday
Jun 1st
Mostly Sunny Mostly Sunny Mix of Cloud and Sun Mostly Sunny Sunny
81°F
76°F
59°F
76°F
62°F
76°F
56°F
80°F
58°F
 
 Mount Vernon Detailed Weather Forecast  
 
Thursday, May 28th, 2026
Evening Temperature: 73°F
Mostly clear. Windy at times.
Friday, May 29th, 2026
Overnight Temperature: 63°F
Mostly clear. Windy at times.
Morning Temperature: 64°F
Mostly sunny. Windy at times.
Afternoon Temperature: 74°F
A mix of cloud and sun.
Evening Temperature: 69°F
A mix of cloudy and clear skies.
Saturday, May 30th, 2026
Overnight Temperature: 63°F
A mix of cloudy and clear skies.
Morning Temperature: 63°F
Mostly cloudy.
Afternoon Temperature: 75°F
A mix of sun and cloud. Windy at times.
Evening Temperature: 67°F
Mostly clear. Windy at times.
Sunday, May 31st, 2026
Overnight Temperature: 57°F
Mostly clear.
Morning Temperature: 61°F
Mostly sunny.
Afternoon Temperature: 75°F
Mostly sunny.
Evening Temperature: 68°F
Mostly clear.
Monday, June 1st, 2026
Overnight Temperature: 59°F
Clear.
Morning Temperature: 66°F
Sunny.
Afternoon Temperature: 79°F
Sunny.
Evening Temperature: 72°F
Clear.
Tuesday, June 2nd, 2026
Overnight Temperature: 64°F
Clear.
Morning Temperature: 70°F
Sunny.
Afternoon Temperature: 79°F
Sunny with cloudy periods with a slight chance of showers or thundershowers. Windy at times.
Evening Temperature: 68°F
Clear. Windy at times.
Wednesday, June 3rd, 2026
Overnight Temperature: 58°F
Mostly clear.
Morning Temperature: 65°F
Sunny.
Afternoon Temperature: 78°F
Sunny.
Evening Temperature: 69°F
Mostly clear.
Thursday, June 4th, 2026
Overnight Temperature: 61°F
Mostly clear.
Morning Temperature: 69°F
Mostly sunny.
Afternoon Temperature: 84°F
Mostly sunny. Slight chance of a thunderstorm. Windy at times.
Evening Temperature: 76°F
Clear. Chance of a thunderstorm.
Friday, June 5th, 2026
Overnight Temperature: 69°F
Clear. Windy at times.
Morning Temperature: 76°F
Mostly sunny. Chance of a thunderstorm. Windy at times.
Afternoon Temperature: 88°F
Mostly sunny. Chance of a thunderstorm. Windy at times.
Evening Temperature: 76°F
A mix of clear and cloudy skies with a chance of showers or thundershowers. Windy at times.





 

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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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