Current conditions at

Mount Vernon Airport (KMVN)

Lat: 38.33°NLon: 88.85°WElev: 466ft.

A Few Clouds

75°F

24°C

Humidity 94%
Wind Speed NE 3 mph
Barometer 29.98 in (1015.1 mb)
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Last update 25 Jul 10:56 pm CDT
Extended Forecast for

2 Miles W Sesser IL

Extreme Heat Warning July 26, 11:00am until July 26, 07:00pm
Click here for hazard details and duration
Extreme Heat Warning
  • Tonight

    Tonight: Patchy fog after 1am.  Otherwise, increasing clouds, with a low around 72. Calm wind.

    Low: 72 °F

    Patchy Fog

  • Sunday

    Sunday: A 30 percent chance of showers and thunderstorms, mainly before noon.  Patchy fog before 8am.  Otherwise, mostly sunny, with a high near 93. Heat index values as high as 106. Calm wind.

    High: 93 °F

    Chance
    T-storms and
    Patchy Fog

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 75. Calm wind.

    Low: 75 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny and hot, with a high near 98. Heat index values as high as 113. Light south southwest wind becoming southwest 5 to 9 mph in the morning.

    High: 98 °F

    Hot

  • Monday Night

    Monday Night: Mostly clear, with a low around 78. South southwest wind around 8 mph.

    Low: 78 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 94. North northwest wind 6 to 11 mph.

    High: 94 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 70. Northeast wind 3 to 8 mph.

    Low: 70 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 89. Northeast wind 3 to 8 mph.

    High: 89 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 67. North northeast wind around 6 mph becoming calm  in the evening.

    Low: 67 °F

    Mostly Clear

Detailed Forecast

Tonight
Patchy fog after 1am. Otherwise, increasing clouds, with a low around 72. Calm wind.
Sunday
A 30 percent chance of showers and thunderstorms, mainly before noon. Patchy fog before 8am. Otherwise, mostly sunny, with a high near 93. Heat index values as high as 106. Calm wind.
Sunday Night
Partly cloudy, with a low around 75. Calm wind.
Monday
Mostly sunny and hot, with a high near 98. Heat index values as high as 113. Light south southwest wind becoming southwest 5 to 9 mph in the morning.
Monday Night
Mostly clear, with a low around 78. South southwest wind around 8 mph.
Tuesday
Sunny, with a high near 94. North northwest wind 6 to 11 mph.
Tuesday Night
Partly cloudy, with a low around 70. Northeast wind 3 to 8 mph.
Wednesday
Sunny, with a high near 89. Northeast wind 3 to 8 mph.
Wednesday Night
Mostly clear, with a low around 67. North northeast wind around 6 mph becoming calm in the evening.
Thursday
Sunny, with a high near 89. Calm wind becoming northeast around 5 mph in the afternoon.
Thursday Night
Partly cloudy, with a low around 68. Northeast wind around 5 mph becoming calm in the evening.
Friday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 89. Calm wind becoming west around 5 mph in the afternoon.
Friday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 70. North northwest wind around 5 mph becoming calm in the evening.
Saturday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 89. Calm wind becoming north 5 to 7 mph in the morning.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles W Sesser IL
 38.1°N 89.1°W
9:06 pm CDT Jul 25, 2026
11pm CDT Jul 25, 2026-6pm CDT Aug 1, 2026
 
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Additional Resources

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Hourly Weather Forecast

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