Current conditions at
Mount Vernon Airport (KMVN)
Lat: 38.33°NLon: 88.85°WElev: 466ft.
Partly Cloudy
63°F
17°C
| Humidity | 38% |
| Wind Speed | N 3 mph |
| Barometer | 30.00 in (1016.3 mb) |
| Dewpoint | 37°F (3°C) |
| Visibility | 10.00 mi |
| Last update | 28 Feb 3:56 pm CST |
Extended Forecast for
Mount Vernon IL
This Afternoon

High: 65 °F
Slight Chance
T-stormsTonight
Low: 32 °F
Slight Chance
T-storms then
Mostly ClearSunday

High: 47 °F
Partly Sunny
Sunday Night

Low: 34 °F
Rain/Snow
LikelyMonday
High: 46 °F
Showers
Likely then
Slight Chance
ShowersMonday Night

Low: 41 °F
Showers
LikelyTuesday

High: 66 °F
Showers
LikelyTuesday Night

Low: 55 °F
Showers
LikelyWednesday

High: 69 °F
Showers
Likely
Detailed Forecast
This Afternoon
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 65. South southwest wind around 6 mph.
Tonight
A slight chance of showers and thunderstorms before 7pm, then a slight chance of showers between 7pm and 8pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 32. Light and variable wind becoming north 6 to 11 mph in the evening. Winds could gust as high as 20 mph. Chance of precipitation is 20%.
Sunday
Partly sunny, with a high near 47. Northeast wind 9 to 11 mph, with gusts as high as 18 mph.
Sunday Night
A chance of rain showers before 9pm, then rain and snow showers likely. Cloudy, with a low around 34. East northeast wind 7 to 9 mph. Chance of precipitation is 60%.
Monday
Showers likely, mainly before noon. Cloudy, with a high near 46. East wind 7 to 9 mph. Chance of precipitation is 60%.
Monday Night
Showers likely, mainly after midnight. Cloudy, with a low around 41. East wind 5 to 8 mph becoming south after midnight. Chance of precipitation is 60%.
Tuesday
Showers likely, with thunderstorms also possible after 3pm. Cloudy, with a high near 66. South southwest wind 9 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 60%.
Tuesday Night
Showers likely. Cloudy, with a low around 55. South wind 6 to 8 mph.
Wednesday
Showers likely and possibly a thunderstorm. Cloudy, with a high near 69. South southwest wind 7 to 11 mph, with gusts as high as 18 mph.
Wednesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 56. South southwest wind around 8 mph.
Thursday
Showers likely. Mostly cloudy, with a high near 69. South southwest wind 7 to 11 mph, with gusts as high as 18 mph.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 58. South southwest wind around 7 mph.
Friday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 73. South southwest wind 7 to 13 mph, with gusts as high as 20 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
3:51 pm CST Feb 28, 2026
4pm CST Feb 28, 2026-6pm CST Mar 6, 2026


