Hazardous Weather Conditions
Current conditions at
Mount Vernon Airport (KMVN)
Lat: 38.33°NLon: 88.85°WElev: 466ft.
Fair
80°F
27°C
| Humidity | 76% |
| Wind Speed | N 5 mph |
| Barometer | 29.83 in (1010.1 mb) |
| Dewpoint | 72°F (22°C) |
| Visibility | 10.00 mi |
| Heat Index | 84°F (29°C) |
| Last update | 28 Jul 7:56 pm CDT |
Extended Forecast for
Mount Vernon IL
Tonight
Low: 65 °F
Mostly Clear
Wednesday
High: 86 °F
Sunny
Wednesday Night
Low: 63 °F
Clear
Thursday
High: 87 °F
Sunny
Thursday Night
Low: 65 °F
Partly Cloudy
Friday
High: 86 °F
Mostly Sunny
then Slight
Chance
T-stormsFriday Night
Low: 68 °F
Showers
LikelySaturday
High: 81 °F
Chance
ShowersSaturday Night
Low: 67 °F
Chance
Showers
Detailed Forecast
Tonight
Mostly clear, with a low around 65. Calm wind becoming northeast around 5 mph.
Wednesday
Sunny, with a high near 86. Calm wind becoming north northeast around 6 mph in the afternoon.
Wednesday Night
Clear, with a low around 63. North northeast wind around 5 mph becoming calm in the evening.
Thursday
Sunny, with a high near 87. Calm wind.
Thursday Night
Partly cloudy, with a low around 65. Calm wind.
Friday
A 20 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 86. Calm wind becoming south around 6 mph in the afternoon.
Friday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 68. South southeast wind 3 to 7 mph. Chance of precipitation is 60%.
Saturday
A chance of showers and thunderstorms. Partly sunny, with a high near 81. South wind 5 to 11 mph becoming north northwest in the afternoon. Winds could gust as high as 18 mph.
Saturday Night
A chance of showers and thunderstorms, mainly before 1am. Mostly cloudy, with a low around 67. North wind 5 to 10 mph becoming light.
Sunday
A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 83. North northeast wind 6 to 11 mph.
Sunday Night
Partly cloudy, with a low around 67. North northeast wind 5 to 8 mph becoming calm in the evening.
Monday
A chance of showers and thunderstorms. Mostly sunny, with a high near 86. Calm wind becoming east around 6 mph in the afternoon.
Monday Night
Partly cloudy, with a low around 68. Light and variable wind.
Tuesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 89. Light and variable wind.
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Mount Vernon IL
38.31°N 88.91°W
38.31°N 88.91°W
8:46 pm CDT Jul 28, 2026
8pm CDT Jul 28, 2026-6pm CDT Aug 4, 2026
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