Hazardous Weather Conditions
Current conditions at
Mount Vernon Airport (KMVN)
Lat: 38.33°NLon: 88.85°WElev: 466ft.
Overcast
77°F
25°C
| Humidity | 100% |
| Wind Speed | S 5 mph |
| Barometer | 29.97 in (1014.8 mb) |
| Dewpoint | 77°F (25°C) |
| Visibility | 7.00 mi |
| Heat Index | 78°F (26°C) |
| Last update | 26 Jul 8:56 am CDT |
Extended Forecast for
3 Miles NNE Sesser IL
Extreme Heat Warning July 26, 11:00am until July 28, 07:00pm
Today
High: 95 °F
Slight Chance
T-storms then
Mostly SunnyTonight
Low: 77 °F
Partly Cloudy
Monday
High: 98 °F
Hot
Monday Night
Low: 78 °F
Mostly Clear
Tuesday
High: 94 °F
Sunny
Tuesday Night
Low: 70 °F
Slight Chance
T-stormsWednesday
High: 89 °F
Sunny
Wednesday Night
Low: 66 °F
Mostly Clear
Thursday
High: 89 °F
Sunny
Detailed Forecast
Today
A 20 percent chance of showers and thunderstorms before 11am. Mostly sunny, with a high near 95. Heat index values as high as 110. Light and variable wind.
Tonight
Partly cloudy, with a low around 77. Light and variable wind.
Monday
Sunny and hot, with a high near 98. Heat index values as high as 113. Calm wind becoming west southwest 5 to 8 mph in the morning.
Monday Night
Mostly clear, with a low around 78. South southwest wind 6 to 8 mph.
Tuesday
Sunny, with a high near 94. Northwest wind 6 to 10 mph.
Tuesday Night
A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 70. North wind 3 to 8 mph.
Wednesday
Sunny, with a high near 89. North northeast wind 3 to 7 mph.
Wednesday Night
Mostly clear, with a low around 66. North wind around 6 mph becoming calm in the evening.
Thursday
Sunny, with a high near 89. Light east northeast wind.
Thursday Night
Partly cloudy, with a low around 68. Calm wind.
Friday
A slight chance of showers and thunderstorms. Partly sunny, with a high near 88. Calm wind becoming south around 5 mph in the afternoon.
Friday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 68. East wind around 6 mph becoming calm in the evening.
Saturday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 87. Calm wind becoming north 5 to 8 mph in the morning.
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
3 Miles NNE Sesser IL
38.14°N 89.04°W
38.14°N 89.04°W
9:16 am CDT Jul 26, 2026
9am CDT Jul 26, 2026-6pm CDT Aug 1, 2026
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