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.

Overcast with Haze

N/A

Humidity NA
Wind Speed W 5 mph
Barometer 30.19 in
Dewpoint N/A
Visibility 4.00 mi
Last update 23 Nov 5:56 am CST
Extended Forecast for

Sesser IL

Dense Fog Advisory November 23, 06:22am until November 23, 09:00am
Click here for hazard details and duration
...
  •  
    Dense Fog Advisory November 23, 06:22am until November 23, 09:00am

    NOW until 9:00am Sun

    Dense Fog Advisory

  • Today

    High: 57 °F

    Decreasing
    Clouds

  • Tonight

    Tonight: Patchy fog between 9pm and 10pm. Otherwise, increasing clouds, with a low around 43. Light southeast wind.

    Low: 43 °F

    Patchy Fog
    then Mostly
    Cloudy

  • Monday

    Monday: A 50 percent chance of showers after noon. Cloudy, with a high near 59. South southeast wind 5 to 9 mph.

    High: 59 °F

    Mostly Cloudy
    then Chance
    Showers

  • Monday Night

    Monday Night: Showers. Low around 51. Southeast wind around 6 mph becoming south southwest after midnight. Chance of precipitation is 100%.

    Low: 51 °F

    Showers

  • Tuesday

    Tuesday: A 20 percent chance of showers. Mostly cloudy, with a high near 63. West wind 5 to 9 mph.

    High: 63 °F

    Slight Chance
    Showers

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 39. West northwest wind 5 to 13 mph, with gusts as high as 20 mph.

    Low: 39 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 47. West northwest wind 9 to 16 mph, with gusts as high as 22 mph.

    High: 47 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 29. West northwest wind 5 to 7 mph.

    Low: 29 °F

    Partly Cloudy

Detailed Forecast

Today
Mostly cloudy, then gradually becoming sunny, with a high near 57. Light and variable wind.
Tonight
Patchy fog between 9pm and 10pm. Otherwise, increasing clouds, with a low around 43. Light southeast wind.
Monday
A 50 percent chance of showers after noon. Cloudy, with a high near 59. South southeast wind 5 to 9 mph.
Monday Night
Showers. Low around 51. Southeast wind around 6 mph becoming south southwest after midnight. Chance of precipitation is 100%.
Tuesday
A 20 percent chance of showers. Mostly cloudy, with a high near 63. West wind 5 to 9 mph.
Tuesday Night
Partly cloudy, with a low around 39. West northwest wind 5 to 13 mph, with gusts as high as 20 mph.
Wednesday
Sunny, with a high near 47. West northwest wind 9 to 16 mph, with gusts as high as 22 mph.
Wednesday Night
Partly cloudy, with a low around 29. West northwest wind 5 to 7 mph.
Thanksgiving Day
Sunny, with a high near 46. West northwest wind 5 to 9 mph.
Thursday Night
Partly cloudy, with a low around 27. Light and variable wind.
Friday
Mostly sunny, with a high near 46. Light and variable wind becoming south 5 to 7 mph in the morning.
Friday Night
A slight chance of showers. Mostly cloudy, with a low around 33. South southeast wind 3 to 7 mph.
Saturday
A chance of showers. Mostly cloudy, with a high near 49. South southeast wind 7 to 10 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Sesser IL
 38.09°N 89.04°W
Last Update:
4:21 am CST Nov 23, 2025
Forecast Valid:
6am CST Nov 23, 2025-6pm CST Nov 29, 2025
 
Forecast Discussion
 
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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