Current conditions at
Mount Vernon Airport (KMVN)
Lat: 38.33°NLon: 88.85°WElev: 466ft.
Fair
82°F
28°C
| Humidity | 35% |
| Wind Speed | Calm |
| Barometer | 30.06 in (1018.0 mb) |
| Dewpoint | 52°F (11°C) |
| Visibility | 10.00 mi |
| Heat Index | 81°F (27°C) |
| Last update | 24 Aug 2:56 pm CDT |
Extended Forecast for
Mount Vernon IL
This Afternoon
High: 83 °F
Mostly Sunny
Tonight
Low: 59 °F
Decreasing
CloudsTuesday
High: 87 °F
Sunny
Tuesday Night
Low: 65 °F
Partly Cloudy
Wednesday
High: 91 °F
Mostly Sunny
Wednesday Night
Low: 67 °F
Slight Chance
T-stormsThursday
High: 89 °F
Sunny
Thursday Night
Low: 64 °F
Mostly Clear
Friday
High: 89 °F
Sunny
Detailed Forecast
This Afternoon
Mostly sunny, with a high near 83. Calm wind.
Tonight
Mostly cloudy, then gradually becoming clear, with a low around 59. Calm wind.
Tuesday
Sunny, with a high near 87. Light east southeast wind.
Tuesday Night
Partly cloudy, with a low around 65. Calm wind.
Wednesday
Mostly sunny, with a high near 91. Light and variable wind.
Wednesday Night
A 20 percent chance of showers and thunderstorms. Mostly clear, with a low around 67. Calm wind.
Thursday
Sunny, with a high near 89. Calm wind becoming north northwest 5 to 8 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 64. Light north wind.
Friday
Sunny, with a high near 89. Calm wind becoming north around 5 mph in the afternoon.
Friday Night
Mostly clear, with a low around 64. Calm wind.
Saturday
Sunny, with a high near 91. Calm wind.
Saturday Night
Mostly clear, with a low around 68. Calm wind.
Sunday
Mostly sunny, with a high near 95. Calm wind becoming south southwest 5 to 7 mph in the morning.
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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 Aug 24, 2026
3pm CDT Aug 24, 2026-6pm CDT Aug 30, 2026
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