Hazardous Weather Conditions
Current conditions at
Mount Vernon Airport (KMVN)
Lat: 38.33°NLon: 88.85°WElev: 466ft.
Mostly Cloudy
73°F
23°C
| Humidity | 90% |
| Wind Speed | Calm |
| Barometer | 29.96 in (1014.5 mb) |
| Dewpoint | 70°F (21°C) |
| Visibility | 10.00 mi |
| Last update | 14 Oct 6:56 am CDT |
Extended Forecast for
Mount Vernon IL
Today
High: 81 °F
Showers
Tonight
Low: 65 °F
Chance
ShowersThursday
High: 86 °F
Chance
T-storms then
Showers
LikelyThursday Night
Low: 51 °F
Showers
LikelyFriday
High: 62 °F
Partly Sunny
and BreezyFriday Night
Low: 39 °F
Mostly Clear
Saturday
High: 63 °F
Sunny
Saturday Night
Low: 37 °F
Clear
Sunday
High: 70 °F
Sunny
Detailed Forecast
Today
Showers and thunderstorms before 2pm, then showers likely and possibly a thunderstorm between 2pm and 3pm, then a chance of showers and thunderstorms after 3pm. High near 81. Calm wind becoming west around 5 mph. Chance of precipitation is 90%.
Tonight
A chance of showers and thunderstorms before 11pm, then a chance of showers between 11pm and 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 65. Calm wind. Chance of precipitation is 40%.
Thursday
A chance of showers and thunderstorms before noon, then showers likely and possibly a thunderstorm between noon and 2pm, then a chance of showers and thunderstorms after 2pm. Mostly cloudy, then gradually becoming sunny, with a high near 86. Light and variable wind becoming south southwest 6 to 11 mph in the morning. Chance of precipitation is 60%.
Thursday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 51. Southwest wind 7 to 17 mph becoming northwest after midnight. Winds could gust as high as 28 mph. Chance of precipitation is 60%.
Friday
Partly sunny, with a high near 62. Breezy, with a northwest wind 20 to 23 mph, with gusts as high as 32 mph.
Friday Night
Mostly clear, with a low around 39. North wind 12 to 17 mph decreasing to 6 to 11 mph after midnight. Winds could gust as high as 22 mph.
Saturday
Sunny, with a high near 63. Northeast wind 3 to 6 mph.
Saturday Night
Clear, with a low around 37. Calm wind.
Sunday
Sunny, with a high near 70. Calm wind becoming south 5 to 8 mph in the morning.
Sunday Night
Partly cloudy, with a low around 44. Light south southeast wind.
Monday
Mostly sunny, with a high near 72. Calm wind becoming south southwest 5 to 7 mph in the morning.
Monday Night
Partly cloudy, with a low around 48. Calm wind.
Tuesday
Mostly sunny, with a high near 77. Calm wind becoming south southeast around 5 mph in the afternoon.
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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
5:56 am CDT Oct 14, 2026
7am CDT Oct 14, 2026-6pm CDT Oct 20, 2026
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