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 S 7 mph
Barometer 30.14 in
Dewpoint N/A
Visibility 10.00 mi
Last update 3 Dec 4:56 am CST
Extended Forecast for

Mount Vernon IL

  • Today

    Today: Partly sunny, with a high near 41. Light south wind becoming south southwest 5 to 9 mph.

    High: 41 °F

    Partly Sunny

  • Tonight

    Tonight: A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 18. Light and variable wind becoming north 5 to 10 mph after midnight. Winds could gust as high as 18 mph.

    Low: 18 °F

    Slight Chance
    Snow then
    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 28. North wind 5 to 10 mph becoming light north northeast in the afternoon.

    High: 28 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 15. Calm wind.

    Low: 15 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 39. Calm wind becoming south southwest around 6 mph.

    High: 39 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 24. Calm wind.

    Low: 24 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 41. Calm wind becoming west around 5 mph.

    High: 41 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 25. Light northeast wind.

    Low: 25 °F

    Mostly Cloudy

  • Sunday

    Sunday: A slight chance of showers after noon. Partly sunny, with a high near 40. Northeast wind 5 to 7 mph.

    High: 40 °F

    Partly Sunny
    then Slight
    Chance
    Showers

Detailed Forecast

Today
Partly sunny, with a high near 41. Light south wind becoming south southwest 5 to 9 mph.
Tonight
A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 18. Light and variable wind becoming north 5 to 10 mph after midnight. Winds could gust as high as 18 mph.
Thursday
Mostly sunny, with a high near 28. North wind 5 to 10 mph becoming light north northeast in the afternoon.
Thursday Night
Partly cloudy, with a low around 15. Calm wind.
Friday
Mostly sunny, with a high near 39. Calm wind becoming south southwest around 6 mph.
Friday Night
Partly cloudy, with a low around 24. Calm wind.
Saturday
Partly sunny, with a high near 41. Calm wind becoming west around 5 mph.
Saturday Night
Mostly cloudy, with a low around 25. Light northeast wind.
Sunday
A slight chance of showers after noon. Partly sunny, with a high near 40. Northeast wind 5 to 7 mph.
Sunday Night
A slight chance of showers before midnight. Mostly cloudy, with a low around 24. North wind around 6 mph.
Monday
Partly sunny, with a high near 36. Northwest wind around 6 mph becoming light and variable in the afternoon.
Monday Night
Mostly cloudy, with a low around 26. Calm wind becoming southwest 5 to 7 mph after midnight.
Tuesday
Mostly sunny, with a high near 45. West southwest wind 7 to 10 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mount Vernon IL
 38.31°N 88.91°W
Last Update:
5:06 am CST Dec 3, 2025
Forecast Valid:
5am CST Dec 3, 2025-6pm CST Dec 9, 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