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Hazardous Weather Conditions
Current conditions at
Mount Vernon Airport (KMVN)
Lat: 38.33°NLon: 88.85°WElev: 466ft.
Partly Cloudy
69°F
21°C
| Humidity | 90% |
| Wind Speed | Calm |
| Barometer | 30.00 in (1015.8 mb) |
| Dewpoint | 66°F (19°C) |
| Visibility | 10.00 mi |
| Last update | 24 Jun 11:56 pm CDT |
Extended Forecast for
Mount Vernon IL
Overnight

Low: 67 °F
Chance
ShowersThursday
High: 86 °F
Chance
Showers then
Showers
LikelyThursday Night

Low: 69 °F
Showers
Friday

High: 84 °F
Showers
Friday Night

Low: 70 °F
Showers
LikelySaturday

High: 88 °F
Showers
LikelySaturday Night

Low: 72 °F
Chance
T-stormsSunday

High: 94 °F
Sunny
Sunday Night

Low: 74 °F
Clear
Detailed Forecast
Overnight
A chance of showers, with thunderstorms also possible after 5am. Partly cloudy, with a low around 67. Calm wind. Chance of precipitation is 30%.
Thursday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 5pm. Mostly sunny, with a high near 86. Light and variable wind. Chance of precipitation is 60%.
Thursday Night
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 4am. Low around 69. Calm wind. Chance of precipitation is 80%.
Friday
Showers and possibly a thunderstorm. High near 84. Light and variable wind becoming south southwest 5 to 9 mph in the morning. Chance of precipitation is 90%.
Friday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 70. South southwest wind around 6 mph becoming calm in the evening. Chance of precipitation is 70%.
Saturday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 88. Calm wind becoming southwest around 6 mph in the morning. Chance of precipitation is 60%.
Saturday Night
A 30 percent chance of showers and thunderstorms, mainly before 1am. Partly cloudy, with a low around 72. Light south wind.
Sunday
Sunny, with a high near 94. South southwest wind 5 to 10 mph.
Sunday Night
Clear, with a low around 74. South wind 5 to 9 mph becoming light south southwest after midnight.
Monday
Sunny and hot, with a high near 97. South southwest wind 3 to 8 mph.
Monday Night
Mostly clear, with a low around 75. South wind 5 to 7 mph becoming calm after midnight.
Tuesday
Sunny and hot, with a high near 98. Calm wind becoming southwest around 5 mph in the afternoon.
Tuesday Night
Clear, with a low around 76. Light south southwest wind.
Wednesday
Sunny and hot, with a high near 98. Light southwest wind.
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ABOUT THIS FORECAST
Point Forecast:
Mount Vernon IL
38.31°N 88.91°W
38.31°N 88.91°W
9:51 pm CDT Jun 24, 2026
12am CDT Jun 25, 2026-6pm CDT Jul 1, 2026



