Hazardous Weather Conditions
Current conditions at
Mount Vernon Airport (KMVN)
Lat: 38.33°NLon: 88.85°WElev: 466ft.
A Few Clouds
75°F
24°C
| Humidity | 94% |
| Wind Speed | NE 3 mph |
| Barometer | 29.98 in (1015.1 mb) |
| Dewpoint | 73°F (23°C) |
| Visibility | 10.00 mi |
| Last update | 25 Jul 10:56 pm CDT |
Extended Forecast for
3 Miles ENE Mount Vernon IL
Heat Advisory July 26, 11:00am until July 28, 07:00pm
Tonight

Low: 72 °F
Patchy Fog
Sunday

High: 93 °F
Chance
T-storms and
Patchy FogSunday Night

Low: 75 °F
Partly Cloudy
Monday

High: 97 °F
Hot
Monday Night

Low: 77 °F
Mostly Clear
Tuesday

High: 93 °F
Sunny
Tuesday Night

Low: 69 °F
Partly Cloudy
Wednesday

High: 89 °F
Sunny
Wednesday Night

Low: 66 °F
Mostly Clear
Detailed Forecast
Tonight
Patchy fog after 1am. Otherwise, increasing clouds, with a low around 72. Calm wind.
Sunday
A 30 percent chance of showers and thunderstorms, mainly before noon. Patchy fog before 8am. Otherwise, mostly sunny, with a high near 93. Heat index values as high as 107. Calm wind.
Sunday Night
Partly cloudy, with a low around 75. Calm wind.
Monday
Mostly sunny and hot, with a high near 97. Heat index values as high as 113. Calm wind becoming southwest 5 to 9 mph in the morning.
Monday Night
Mostly clear, with a low around 77. South southwest wind 6 to 8 mph.
Tuesday
Sunny, with a high near 93. Northwest wind 5 to 10 mph.
Tuesday Night
Partly cloudy, with a low around 69. North wind 5 to 8 mph becoming calm after midnight.
Wednesday
Sunny, with a high near 89. Calm wind becoming north 5 to 7 mph in the morning.
Wednesday Night
Mostly clear, with a low around 66. North wind around 6 mph becoming calm in the evening.
Thursday
Sunny, with a high near 88. Light northeast wind.
Thursday Night
Partly cloudy, with a low around 68. Light northeast wind.
Friday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 88. Calm wind becoming north northeast around 5 mph in the afternoon.
Friday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 69. Northeast wind around 5 mph becoming calm in the evening.
Saturday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 88. Calm wind becoming north around 6 mph in the afternoon.
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ABOUT THIS FORECAST
Point Forecast:
3 Miles ENE Mount Vernon IL
38.33°N 88.86°W
38.33°N 88.86°W
9:06 pm CDT Jul 25, 2026
11pm CDT Jul 25, 2026-6pm CDT Aug 1, 2026



