News Headlines
Current conditions at
Mount Vernon Airport (KMVN)
Lat: 38.33°NLon: 88.85°WElev: 466ft.
Mostly Cloudy
83°F
28°C
| Humidity | 46% |
| Wind Speed | S 13 mph |
| Barometer | 30.10 in (1019.3 mb) |
| Dewpoint | 60°F (16°C) |
| Visibility | 10.00 mi |
| Heat Index | 83°F (28°C) |
| Last update | 4 Jun 3:56 pm CDT |
Extended Forecast for
Mount Vernon IL
This Afternoon
High: 85 °F
Mostly Sunny
Tonight
Low: 66 °F
Partly Cloudy
Friday
High: 87 °F
Mostly Sunny
Friday Night
Low: 70 °F
Partly Cloudy
Saturday
High: 90 °F
Mostly Sunny
Saturday Night
Low: 72 °F
Mostly Cloudy
Sunday
High: 88 °F
Chance
T-stormsSunday Night
Low: 71 °F
Chance
T-storms then
Showers
LikelyMonday
High: 85 °F
Showers
Detailed Forecast
This Afternoon
Mostly sunny, with a high near 85. Southwest wind around 5 mph.
Tonight
Partly cloudy, with a low around 66. South wind 5 to 9 mph becoming light.
Friday
Mostly sunny, with a high near 87. South southwest wind 7 to 14 mph, with gusts as high as 20 mph.
Friday Night
Partly cloudy, with a low around 70. South southwest wind 5 to 11 mph, with gusts as high as 20 mph.
Saturday
Mostly sunny, with a high near 90. Southwest wind 6 to 8 mph.
Saturday Night
Mostly cloudy, with a low around 72. South southwest wind 5 to 7 mph becoming calm after midnight.
Sunday
A 30 percent chance of showers and thunderstorms, mainly after 1pm. Mostly cloudy, with a high near 88. Calm wind becoming south around 6 mph in the afternoon.
Sunday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 71. South wind around 6 mph becoming calm in the evening.
Monday
Showers and possibly a thunderstorm. Mostly cloudy, with a high near 85. Light south southeast wind becoming south 5 to 9 mph in the morning.
Monday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 71. South wind 3 to 7 mph.
Tuesday
A chance of showers and thunderstorms. Partly sunny, with a high near 88. South wind 5 to 8 mph.
Tuesday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 72. South wind around 5 mph becoming calm in the evening.
Wednesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 90. South southwest wind 3 to 7 mph.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast AreaABOUT THIS FORECAST
Point Forecast:
Mount Vernon IL
38.31°N 88.91°W
38.31°N 88.91°W
4:35 pm CDT Jun 4, 2026
4pm CDT Jun 4, 2026-6pm CDT Jun 10, 2026
Additional Resources
Radar & Satellite Image
Hourly Weather Forecast
