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

82°F

28°C

Humidity 24%
Wind Speed Vrbl 6 mph
Barometer 30.12 in (1019.9 mb)
Dewpoint 42°F (6°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 8 Oct 11:56 am CDT
Extended Forecast for

Sesser IL

  • This Afternoon

    This Afternoon: Sunny, with a high near 85. East wind 3 to 5 mph.

    High: 85 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 53. Light southeast wind.

    Low: 53 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 89. Light south southeast wind becoming south 5 to 10 mph in the morning.

    High: 89 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 59. South southeast wind 3 to 6 mph.

    Low: 59 °F

    Mostly Clear

  • Saturday

    Saturday: A 50 percent chance of showers after 10am. Partly sunny, with a high near 80. Light southeast wind becoming east 6 to 11 mph in the morning.

    High: 80 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: Showers and possibly a thunderstorm before 4am, then showers likely. Low around 60. East northeast wind 10 to 17 mph, with gusts as high as 20 mph. Chance of precipitation is 80%.

    Low: 60 °F

    Showers

  • Sunday

    Sunday: A 30 percent chance of showers before 1pm. Mostly cloudy, with a high near 77. Northeast wind around 9 mph becoming north northwest in the afternoon.

    High: 77 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 58. Light and variable wind.

    Low: 58 °F

    Mostly Clear

  • Columbus Day

    Columbus Day: Sunny, with a high near 88. Light south southwest wind increasing to 8 to 13 mph in the afternoon.

    High: 88 °F

    Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 85. East wind 3 to 5 mph.
Tonight
Clear, with a low around 53. Light southeast wind.
Friday
Sunny, with a high near 89. Light south southeast wind becoming south 5 to 10 mph in the morning.
Friday Night
Mostly clear, with a low around 59. South southeast wind 3 to 6 mph.
Saturday
A 50 percent chance of showers after 10am. Partly sunny, with a high near 80. Light southeast wind becoming east 6 to 11 mph in the morning.
Saturday Night
Showers and possibly a thunderstorm before 4am, then showers likely. Low around 60. East northeast wind 10 to 17 mph, with gusts as high as 20 mph. Chance of precipitation is 80%.
Sunday
A 30 percent chance of showers before 1pm. Mostly cloudy, with a high near 77. Northeast wind around 9 mph becoming north northwest in the afternoon.
Sunday Night
Mostly clear, with a low around 58. Light and variable wind.
Columbus Day
Sunny, with a high near 88. Light south southwest wind increasing to 8 to 13 mph in the afternoon.
Monday Night
Mostly clear, with a low around 64. South wind 8 to 11 mph.
Tuesday
Sunny, with a high near 86. West northwest wind 8 to 11 mph.
Tuesday Night
Mostly clear, with a low around 60. North northwest wind 6 to 8 mph becoming east after midnight.
Wednesday
A slight chance of showers. Mostly sunny, with a high near 81. East northeast wind 7 to 10 mph becoming south southeast in the afternoon.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Sesser IL
 38.09°N 89.04°W
Last Update:
11:26 am CDT Oct 8, 2026
Forecast Valid:
12pm 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