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Hazardous Weather Conditions
Current conditions at
Mount Vernon Airport (KMVN)
Lat: 38.33°NLon: 88.85°WElev: 466ft.
Fair
65°F
18°C
| Humidity | 97% |
| Wind Speed | Calm |
| Barometer | 29.98 in (1015.1 mb) |
| Dewpoint | 64°F (18°C) |
| Visibility | 9.00 mi |
| Last update | 25 Jun 3:56 am CDT |
Extended Forecast for
Mount Vernon IL
Flood Watch June 25, 04:00pm until June 27, 07:00am
Today
High: 87 °F
Mostly Sunny
then Chance
T-stormsTonight
Low: 69 °F
Chance
T-storms then
Showers
LikelyFriday
High: 83 °F
Showers
LikelyFriday Night
Low: 70 °F
Showers
Saturday
High: 88 °F
Showers
LikelySaturday Night
Low: 72 °F
Chance
T-stormsSunday
High: 94 °F
Sunny
Sunday Night
Low: 75 °F
Clear
Monday
High: 96 °F
Sunny
Detailed Forecast
Today
A 50 percent chance of showers and thunderstorms, mainly after 4pm. Mostly sunny, with a high near 87. Calm wind.
Tonight
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 4am. Mostly cloudy, with a low around 69. Calm wind. Chance of precipitation is 60%.
Friday
Showers likely and possibly a thunderstorm before 9am, then a chance of showers and thunderstorms between 9am and 10am, then showers likely and possibly a thunderstorm after 10am. Mostly cloudy, with a high near 83. Light south southeast wind becoming south 5 to 9 mph in the morning. Chance of precipitation is 70%.
Friday Night
Showers and possibly a thunderstorm. Low around 70. South southwest wind 5 to 7 mph becoming calm in the evening. Chance of precipitation is 80%.
Saturday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 88. Calm wind becoming southwest around 5 mph. Chance of precipitation is 60%.
Saturday Night
A 50 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 3 to 8 mph.
Sunday Night
Clear, with a low around 75. South wind 3 to 7 mph.
Monday
Sunny, with a high near 96. Calm wind becoming south southwest 5 to 8 mph in the morning.
Monday Night
Clear, with a low around 76. South wind around 6 mph becoming calm after midnight.
Tuesday
Sunny and hot, with a high near 97. Light south southwest wind.
Tuesday Night
Clear, with a low around 76. Calm wind.
Wednesday
Sunny and hot, with a high near 97. Calm wind.
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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
2:36 am CDT Jun 25, 2026
4am CDT Jun 25, 2026-6pm CDT Jul 1, 2026
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