Hazardous Weather Conditions
Current conditions at
Mount Vernon Airport (KMVN)
Lat: 38.33°NLon: 88.85°WElev: 466ft.
Fair
76°F
24°C
| Humidity | 91% |
| Wind Speed | SW 3 mph |
| Barometer | 30.04 in (1017.2 mb) |
| Dewpoint | 73°F (23°C) |
| Visibility | 10.00 mi |
| Heat Index | 76°F (24°C) |
| Last update | 16 Aug 6:56 am CDT |
Extended Forecast for
4 Miles ENE Mount Vernon IL
Extreme Heat Warning August 16, 07:34am until August 16, 08:00pm
NOW until 8:00pm Sun
Extreme Heat Warning
Today
High: 95 °F
Partly Sunny
Tonight
Low: 72 °F
Chance
T-storms then
Chance
ShowersMonday
High: 87 °F
Partly Sunny
Monday Night
Low: 64 °F
Partly Cloudy
Tuesday
High: 89 °F
Sunny
Tuesday Night
Low: 69 °F
Mostly Clear
then Slight
Chance
T-stormsWednesday
High: 90 °F
Chance
ShowersWednesday Night
Low: 67 °F
Chance
T-storms
Detailed Forecast
Today
Partly sunny, with a high near 95. Heat index values as high as 107. Calm wind becoming west southwest 5 to 7 mph in the morning.
Tonight
A chance of showers and thunderstorms. Mostly cloudy, with a low around 72. Light north northwest wind. Chance of precipitation is 30%.
Monday
Partly sunny, with a high near 87. North northwest wind 3 to 7 mph.
Monday Night
Partly cloudy, with a low around 64. Light north wind.
Tuesday
Sunny, with a high near 89. Calm wind.
Tuesday Night
A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 69. Calm wind.
Wednesday
A 50 percent chance of showers and thunderstorms, mainly before 1pm. Partly sunny, with a high near 90. Calm wind becoming west around 6 mph in the afternoon.
Wednesday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 67. North northeast wind around 5 mph becoming calm in the evening.
Thursday
A chance of showers and thunderstorms, mainly before 1pm. Partly sunny, with a high near 83. Calm wind becoming northeast around 6 mph in the morning.
Thursday Night
A slight chance of showers and thunderstorms, then a chance of showers after 1am. Partly cloudy, with a low around 63. Light northeast wind.
Friday
A slight chance of showers. Mostly sunny, with a high near 84. Calm wind becoming north around 5 mph.
Friday Night
Mostly clear, with a low around 63. Calm wind.
Saturday
Mostly sunny, with a high near 86. Calm wind becoming north northwest around 5 mph in the afternoon.
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
4 Miles ENE Mount Vernon IL
38.33°N 88.83°W
38.33°N 88.83°W
6:51 am CDT Aug 16, 2026
7am CDT Aug 16, 2026-6pm CDT Aug 22, 2026
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