Current conditions at
Mount Vernon Airport (KMVN)
Lat: 38.33°NLon: 88.85°WElev: 466ft.
Fair
66°F
19°C
| Humidity | 100% |
| Wind Speed | Calm |
| Barometer | 30.01 in (1016.3 mb) |
| Dewpoint | 66°F (19°C) |
| Visibility | 10.00 mi |
| Last update | 3 Aug 11:56 pm CDT |
Extended Forecast for
3 Miles SSE Mount Vernon IL
Overnight
Low: 63 °F
Mostly Clear
Tuesday
High: 87 °F
Patchy Fog
then SunnyTuesday Night
Low: 63 °F
Mostly Clear
Wednesday
High: 89 °F
Becoming
SunnyWednesday Night
Low: 68 °F
Mostly Clear
then Slight
Chance
T-stormsThursday
High: 86 °F
Chance
ShowersThursday Night
Low: 69 °F
Chance
T-storms then
Showers
LikelyFriday
High: 86 °F
Chance
T-stormsFriday Night
Low: 68 °F
Chance
T-storms
Detailed Forecast
Overnight
Mostly clear, with a low around 63. Calm wind.
Tuesday
Patchy fog before 7am. Otherwise, sunny, with a high near 87. Calm wind.
Tuesday Night
Mostly clear, with a low around 63. Calm wind.
Wednesday
Partly sunny through mid morning, then becoming sunny, with a high near 89. Calm wind.
Wednesday Night
A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 68. Calm wind.
Thursday
A 50 percent chance of showers and thunderstorms, mainly before 1pm. Mostly cloudy, with a high near 86. Calm wind becoming south southwest around 5 mph.
Thursday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 69. Calm wind. Chance of precipitation is 60%.
Friday
A chance of showers and thunderstorms. Partly sunny, with a high near 86. Light and variable wind.
Friday Night
A chance of showers and thunderstorms, mainly before 1am. Mostly cloudy, with a low around 68. Calm wind.
Saturday
A slight chance of showers and thunderstorms. Partly sunny, with a high near 88. Calm wind.
Saturday Night
Partly cloudy, with a low around 70. Calm wind.
Sunday
Mostly sunny, with a high near 91. Calm wind becoming southwest around 6 mph in the afternoon.
Sunday Night
Mostly clear, with a low around 71. Light south southwest wind.
Monday
Mostly sunny, with a high near 92. Southwest wind 3 to 7 mph.
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
3 Miles SSE Mount Vernon IL
38.29°N 88.89°W
38.29°N 88.89°W
9:56 pm CDT Aug 3, 2026
12am CDT Aug 4, 2026-6pm CDT Aug 10, 2026
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