Current conditions at
Mount Vernon Airport (KMVN)
Lat: 38.33°NLon: 88.85°WElev: 466ft.80°F
27°C
| Humidity | 42% |
| Wind Speed | Calm |
| Barometer | 29.88 in (1011.8 mb) |
| Dewpoint | 55°F (13°C) |
| Visibility | 10.00 mi |
| Heat Index | 80°F (27°C) |
| Last update | 21 Mar 12:56 pm CDT |
Extended Forecast for
Mount Vernon IL
This Afternoon
High: 83 °F
Sunny
Tonight
Low: 62 °F
Mostly Clear
Sunday
High: 84 °F
Mostly Sunny
then Slight
Chance
T-stormsSunday Night
Low: 37 °F
Chance
ShowersMonday
High: 57 °F
Mostly Sunny
Monday Night
Low: 39 °F
Mostly Cloudy
Tuesday
High: 63 °F
Mostly Sunny
Tuesday Night
Low: 44 °F
Mostly Cloudy
Wednesday
High: 70 °F
Partly Sunny
Detailed Forecast
This Afternoon
Sunny, with a high near 83. South wind 3 to 5 mph.
Tonight
Mostly clear, with a low around 62. Calm wind becoming south southwest 5 to 9 mph in the evening.
Sunday
A 20 percent chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 84. South southwest wind 9 to 14 mph, with gusts as high as 24 mph.
Sunday Night
A chance of showers and thunderstorms before 7pm, then a chance of showers between 7pm and 1am. Mostly cloudy, then gradually becoming mostly clear, with a low around 37. North wind 13 to 17 mph, with gusts as high as 30 mph. Chance of precipitation is 30%.
Monday
Mostly sunny, with a high near 57. North northeast wind 8 to 10 mph, with gusts as high as 18 mph.
Monday Night
Mostly cloudy, with a low around 39. Northeast wind around 5 mph.
Tuesday
Mostly sunny, with a high near 63. Southeast wind around 6 mph.
Tuesday Night
Mostly cloudy, with a low around 44. Light east southeast wind.
Wednesday
Partly sunny, with a high near 70. South wind 3 to 8 mph.
Wednesday Night
A slight chance of showers and thunderstorms, then a chance of showers after 1am. Mostly cloudy, with a low around 55. South southwest wind 6 to 8 mph.
Thursday
A slight chance of showers and thunderstorms. Sunny, with a high near 81. Southwest wind 8 to 14 mph, with gusts as high as 21 mph.
Thursday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 46. South southwest wind around 11 mph becoming north northeast after midnight. Winds could gust as high as 21 mph.
Friday
A chance of showers. Partly sunny, with a high near 57. North northeast wind 10 to 13 mph, with gusts as high as 21 mph.
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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
1:26 pm CDT Mar 21, 2026
1pm CDT Mar 21, 2026-6pm CDT Mar 27, 2026
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