National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Mount Vernon Airport (KMVN)

Lat: 38.33°NLon: 88.85°WElev: 466ft.

Fair

77°F

25°C

Humidity 33%
Wind Speed SE 7 mph
Barometer 30.12 in (1020.1 mb)
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 8 Oct 9:56 am CDT
Extended Forecast for

3 Miles NNE Sesser IL

  • Today

    Today: Sunny, with a high near 84. East wind 3 to 5 mph.

    High: 84 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 55. Calm wind.

    Low: 55 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 88. South southeast wind 3 to 8 mph.

    High: 88 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 60. Southeast wind 3 to 5 mph.

    Low: 60 °F

    Mostly Clear

  • Saturday

    Saturday: A 40 percent chance of showers after 1pm. Partly sunny, with a high near 82. Light south southeast wind becoming east southeast 6 to 11 mph in the morning.

    High: 82 °F

    Mostly Sunny
    then Chance
    Showers

  • Saturday Night

    Saturday Night: Showers, with thunderstorms also possible after 1am. Low around 58. East wind 13 to 15 mph. Chance of precipitation is 80%.

    Low: 58 °F

    Showers

  • Sunday

    Sunday: A 50 percent chance of showers before 1pm. Partly sunny, with a high near 75. East northeast wind 10 to 13 mph becoming northwest in the afternoon.

    High: 75 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 57. Calm wind.

    Low: 57 °F

    Mostly Clear

  • Columbus Day

    Columbus Day: Sunny, with a high near 87. Light southwest wind becoming south southwest 5 to 10 mph in the afternoon.

    High: 87 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 84. East wind 3 to 5 mph.
Tonight
Clear, with a low around 55. Calm wind.
Friday
Sunny, with a high near 88. South southeast wind 3 to 8 mph.
Friday Night
Mostly clear, with a low around 60. Southeast wind 3 to 5 mph.
Saturday
A 40 percent chance of showers after 1pm. Partly sunny, with a high near 82. Light south southeast wind becoming east southeast 6 to 11 mph in the morning.
Saturday Night
Showers, with thunderstorms also possible after 1am. Low around 58. East wind 13 to 15 mph. Chance of precipitation is 80%.
Sunday
A 50 percent chance of showers before 1pm. Partly sunny, with a high near 75. East northeast wind 10 to 13 mph becoming northwest in the afternoon.
Sunday Night
Mostly clear, with a low around 57. Calm wind.
Columbus Day
Sunny, with a high near 87. Light southwest wind becoming south southwest 5 to 10 mph in the afternoon.
Monday Night
Mostly clear, with a low around 61. West southwest wind 9 to 11 mph.
Tuesday
A slight chance of showers. Sunny, with a high near 80. Northwest wind 11 to 14 mph.
Tuesday Night
Mostly clear, with a low around 52. North northeast wind 6 to 9 mph.
Wednesday
Sunny, with a high near 75. Northeast wind around 7 mph becoming east southeast in the afternoon.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NNE Sesser IL
 38.14°N 89.04°W
Last Update:
8:56 am CDT Oct 8, 2026
Forecast Valid:
10am CDT Oct 8, 2026-6pm CDT Oct 14, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation