Current conditions at
Mount Vernon Airport (KMVN)
Lat: 38.33°NLon: 88.85°WElev: 466ft.63°F
17°C
| Humidity | 84% |
| Wind Speed | SW 7 mph |
| Barometer | 29.75 in (1007.4 mb) |
| Dewpoint | 58°F (14°C) |
| Visibility | 10.00 mi |
| Last update | 22 Mar 2:56 am CDT |
Extended Forecast for
Mount Vernon IL
Overnight

Low: 65 °F
Mostly Clear
Sunday
High: 87 °F
Sunny then
Slight Chance
T-stormsSunday Night
Low: 36 °F
Chance
T-storms and
Breezy then
Mostly ClearMonday

High: 56 °F
Mostly Sunny
Monday Night

Low: 38 °F
Mostly Cloudy
Tuesday

High: 63 °F
Mostly Sunny
Tuesday Night

Low: 45 °F
Mostly Cloudy
Wednesday

High: 73 °F
Partly Sunny
Wednesday Night
Low: 60 °F
Slight Chance
T-storms then
Chance
Showers
Detailed Forecast
Overnight
Mostly clear, with a steady temperature around 65. South southwest wind around 8 mph.
Sunday
A 10 percent chance of showers and thunderstorms after 5pm. Sunny, with a high near 87. South southwest wind 9 to 16 mph, with gusts as high as 23 mph.
Sunday Night
A 40 percent chance of showers and thunderstorms, mainly before 10pm. Mostly cloudy during the early evening, then gradual clearing, with a low around 36. Breezy, with a north wind 14 to 20 mph, with gusts as high as 32 mph.
Monday
Mostly sunny, with a high near 56. North northeast wind around 10 mph, with gusts as high as 18 mph.
Monday Night
Mostly cloudy, with a low around 38. 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 45. Light east southeast wind.
Wednesday
Partly sunny, with a high near 73. Light south wind becoming south southwest 5 to 9 mph in the morning.
Wednesday Night
A chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 60. South wind 6 to 9 mph.
Thursday
A slight chance of showers after 1pm. Sunny, with a high near 83. Southwest wind 9 to 14 mph, with gusts as high as 21 mph.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 43. West southwest wind 10 to 13 mph becoming north northeast after midnight. Winds could gust as high as 21 mph.
Friday
A chance of showers. Mostly cloudy, with a high near 52. North northeast wind 11 to 13 mph, with gusts as high as 21 mph.
Friday Night
A slight chance of showers. Partly cloudy, with a low around 32. North northeast wind 6 to 9 mph.
Saturday
Mostly sunny, with a high near 56. East northeast wind 6 to 8 mph.
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ABOUT THIS FORECAST
Point Forecast:
Mount Vernon IL
38.31°N 88.91°W
38.31°N 88.91°W
1:26 am CDT Mar 22, 2026
3am CDT Mar 22, 2026-6pm CDT Mar 28, 2026


