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

N/A

Humidity NA
Wind Speed SE 5 mph
Barometer 30.38 in
Dewpoint N/A
Visibility 10.00 mi
Last update 28 Nov 8:56 pm CST
Extended Forecast for

Sesser IL

  • Tonight

    Tonight: A 50 percent chance of snow, mainly after 3am. Cloudy, with a low around 29. Southeast wind 5 to 9 mph.

    Low: 29 °F

    Mostly Cloudy
    then Chance
    Snow

  • Saturday

    Saturday: Rain, possibly mixed with snow, becoming all rain after 2pm. High near 41. Breezy, with a southeast wind 9 to 14 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 26 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.

    High: 41 °F

    Rain/Snow and
    Breezy

  • Saturday Night

    Saturday Night: Rain likely before midnight, then a slight chance of rain and snow showers between midnight and 3am. Cloudy, with a low around 27. South wind 16 to 18 mph becoming west northwest after midnight. Winds could gust as high as 26 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.

    Low: 27 °F

    Rain Likely
    then Slight
    Chance
    Rain/Snow

  • Sunday

    Sunday: Mostly cloudy, with a high near 32. West northwest wind 11 to 18 mph, with gusts as high as 25 mph.

    High: 32 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 22. North northwest wind 5 to 10 mph becoming northeast after midnight.

    Low: 22 °F

    Mostly Cloudy

  • Monday

    Monday: A 20 percent chance of snow showers after noon. Mostly cloudy, with a high near 34. East northeast wind around 6 mph.

    High: 34 °F

    Mostly Cloudy
    then Slight
    Chance Snow
    Showers

  • Monday Night

    Monday Night: Snow showers likely, mainly before midnight. Mostly cloudy, with a low around 23. Calm wind becoming north northwest around 5 mph after midnight. Chance of precipitation is 60%.

    Low: 23 °F

    Snow Showers
    Likely

  • Tuesday

    Tuesday: Partly sunny, with a high near 32. Northwest wind 3 to 7 mph.

    High: 32 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 19. Light and variable wind.

    Low: 19 °F

    Partly Cloudy

Detailed Forecast

Tonight
A 50 percent chance of snow, mainly after 3am. Cloudy, with a low around 29. Southeast wind 5 to 9 mph.
Saturday
Rain, possibly mixed with snow, becoming all rain after 2pm. High near 41. Breezy, with a southeast wind 9 to 14 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 26 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.
Saturday Night
Rain likely before midnight, then a slight chance of rain and snow showers between midnight and 3am. Cloudy, with a low around 27. South wind 16 to 18 mph becoming west northwest after midnight. Winds could gust as high as 26 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.
Sunday
Mostly cloudy, with a high near 32. West northwest wind 11 to 18 mph, with gusts as high as 25 mph.
Sunday Night
Mostly cloudy, with a low around 22. North northwest wind 5 to 10 mph becoming northeast after midnight.
Monday
A 20 percent chance of snow showers after noon. Mostly cloudy, with a high near 34. East northeast wind around 6 mph.
Monday Night
Snow showers likely, mainly before midnight. Mostly cloudy, with a low around 23. Calm wind becoming north northwest around 5 mph after midnight. Chance of precipitation is 60%.
Tuesday
Partly sunny, with a high near 32. Northwest wind 3 to 7 mph.
Tuesday Night
Partly cloudy, with a low around 19. Light and variable wind.
Wednesday
Mostly sunny, with a high near 40. Light south wind becoming south southwest 5 to 9 mph in the morning.
Wednesday Night
Mostly cloudy, with a low around 22. South southwest wind around 6 mph becoming northwest after midnight.
Thursday
Partly sunny, with a high near 35. Northwest wind 5 to 7 mph.
Thursday Night
A slight chance of freezing rain. Mostly cloudy, with a low around 23. Light and variable wind becoming south southeast around 6 mph after midnight.
Friday
A slight chance of showers. Partly sunny, with a high near 41. South southwest wind 6 to 9 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Sesser IL
 38.09°N 89.04°W
Last Update:
9:06 pm CST Nov 28, 2025
Forecast Valid:
9pm CST Nov 28, 2025-6pm CST Dec 5, 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