Hazardous Weather Conditions
Current conditions at
Mount Vernon Airport (KMVN)
Lat: 38.33°NLon: 88.85°WElev: 466ft.
Fair
95°F
35°C
| Humidity | 54% |
| Wind Speed | SE 6 mph |
| Barometer | 30.08 in (1018.3 mb) |
| Dewpoint | 76°F (24°C) |
| Visibility | 9.00 mi |
| Heat Index | 108°F (42°C) |
| Last update | 15 Aug 2:56 pm CDT |
Extended Forecast for
3 Miles ENE Mount Vernon IL
Extreme Heat Warning August 15, 03:15pm until August 16, 08:00pm
NOW until 8:00pm Sun
Extreme Heat Warning
This Afternoon
High: 97 °F
Hot
Tonight
Low: 75 °F
Mostly Clear
Sunday
High: 96 °F
Mostly Sunny
Sunday Night
Low: 71 °F
Chance
T-storms then
Chance
ShowersMonday
High: 87 °F
Slight Chance
Showers then
Mostly SunnyMonday Night
Low: 64 °F
Mostly Clear
Tuesday
High: 89 °F
Sunny
Tuesday Night
Low: 69 °F
Mostly Clear
Detailed Forecast
This Afternoon
Sunny and hot, with a high near 97. Heat index values as high as 111. Southwest wind around 8 mph.
Tonight
Mostly clear, with a low around 75. Light southwest wind.
Sunday
Mostly sunny, with a high near 96. Heat index values as high as 106. West southwest wind 3 to 7 mph.
Sunday Night
A 30 percent chance of showers and thunderstorms, mainly after 2am. Partly cloudy, with a low around 71. Light north northwest wind.
Monday
A 10 percent chance of showers before 7am. Mostly sunny, with a high near 87. North northwest wind 3 to 7 mph.
Monday Night
Mostly clear, with a low around 64. Light north wind.
Tuesday
Sunny, with a high near 89. Calm wind.
Tuesday Night
Mostly clear, with a low around 69. Calm wind.
Wednesday
A chance of showers and thunderstorms, mainly before 1pm. Mostly sunny, with a high near 91. Light and variable wind becoming south southwest 5 to 8 mph in the morning.
Wednesday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 66. North northeast wind 3 to 8 mph.
Thursday
A slight chance of showers. Partly sunny, with a high near 83. North northeast wind 3 to 6 mph.
Thursday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 61. Northeast wind around 5 mph becoming calm in the evening.
Friday
A slight chance of showers. Mostly sunny, with a high near 84. Calm wind becoming northeast around 5 mph in the afternoon.
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
3 Miles ENE Mount Vernon IL
38.33°N 88.86°W
38.33°N 88.86°W
1:26 pm CDT Aug 15, 2026
3pm CDT Aug 15, 2026-6pm CDT Aug 21, 2026
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