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Hazardous Weather Conditions

Current conditions at

Mount Vernon Airport (KMVN)

Lat: 38.33°NLon: 88.85°WElev: 466ft.

Fair

52°F

11°C

Humidity 86%
Wind Speed NE 3 mph
Barometer 29.91 in (1013.2 mb)
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Last update 26 Dec 7:56 pm CST
Extended Forecast for

Sesser IL

  • Tonight

    Tonight: Patchy fog after 2am. Otherwise, mostly cloudy, with a low around 47. North wind around 5 mph becoming calm after midnight.

    Low: 47 °F

    Partly Cloudy
    then Patchy
    Fog

  • Saturday

    Saturday: Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 67. Southeast wind 5 to 9 mph.

    High: 67 °F

    Patchy Fog
    then Mostly
    Cloudy

  • Saturday Night

    Saturday Night: Mostly cloudy, with a temperature rising to around 64 by 4am. South southwest wind 9 to 11 mph, with gusts as high as 18 mph.

    Low: 61 °F⇑

    Mostly Cloudy

  • Sunday

    Sunday: Showers likely, with thunderstorms also possible after 3pm. Cloudy, with a high near 71. South southwest wind 11 to 18 mph, with gusts as high as 26 mph. Chance of precipitation is 60%.

    High: 71 °F

    Slight Chance
    Showers then
    Showers
    Likely

  • Sunday Night

    Sunday Night: Rain showers before midnight, then a chance of rain and snow showers between midnight and 3am, then a chance of snow showers after 3am. Some thunder is also possible. Low around 23. Breezy, with a southwest wind 20 to 22 mph becoming west northwest in the evening. Winds could gust as high as 33 mph. Chance of precipitation is 80%.

    Low: 23 °F

    Showers and
    Breezy then
    Chance
    Rain/Snow and
    Blustery

  • Monday

    Monday: Mostly sunny, with a high near 27. Blustery, with a west northwest wind 17 to 22 mph, with gusts as high as 32 mph.

    High: 27 °F

    Mostly Sunny
    and Blustery

  • Monday Night

    Monday Night: Mostly clear, with a low around 19. Northwest wind 9 to 16 mph, with gusts as high as 23 mph.

    Low: 19 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 35. West northwest wind 7 to 10 mph.

    High: 35 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 26. West southwest wind around 7 mph.

    Low: 26 °F

    Mostly Clear

Detailed Forecast

Tonight
Patchy fog after 2am. Otherwise, mostly cloudy, with a low around 47. North wind around 5 mph becoming calm after midnight.
Saturday
Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 67. Southeast wind 5 to 9 mph.
Saturday Night
Mostly cloudy, with a temperature rising to around 64 by 4am. South southwest wind 9 to 11 mph, with gusts as high as 18 mph.
Sunday
Showers likely, with thunderstorms also possible after 3pm. Cloudy, with a high near 71. South southwest wind 11 to 18 mph, with gusts as high as 26 mph. Chance of precipitation is 60%.
Sunday Night
Rain showers before midnight, then a chance of rain and snow showers between midnight and 3am, then a chance of snow showers after 3am. Some thunder is also possible. Low around 23. Breezy, with a southwest wind 20 to 22 mph becoming west northwest in the evening. Winds could gust as high as 33 mph. Chance of precipitation is 80%.
Monday
Mostly sunny, with a high near 27. Blustery, with a west northwest wind 17 to 22 mph, with gusts as high as 32 mph.
Monday Night
Mostly clear, with a low around 19. Northwest wind 9 to 16 mph, with gusts as high as 23 mph.
Tuesday
Sunny, with a high near 35. West northwest wind 7 to 10 mph.
Tuesday Night
Mostly clear, with a low around 26. West southwest wind around 7 mph.
Wednesday
Mostly sunny, with a high near 42. West northwest wind 7 to 10 mph.
Wednesday Night
Mostly cloudy, with a low around 22. West northwest wind 6 to 8 mph.
New Year's Day
Mostly sunny, with a high near 32. Northwest wind 6 to 9 mph.
Thursday Night
Mostly cloudy, with a low around 17. North northwest wind 3 to 5 mph.
Friday
Mostly sunny, with a high near 31. North northwest wind 5 to 7 mph becoming east in the afternoon.
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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:
6:36 pm CST Dec 26, 2025
Forecast Valid:
8pm CST Dec 26, 2025-6pm CST Jan 2, 2026
 
Forecast Discussion
 
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Additional Resources

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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