National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Mount Vernon Airport (KMVN)

Lat: 38.33°NLon: 88.85°WElev: 466ft.

Fair

N/A

Humidity NA
Wind Speed SW 12 mph
Barometer 30.13 in
Dewpoint N/A
Visibility 10.00 mi
Last update 16 Dec 8:56 am CST
Extended Forecast for

3 Miles ENE Mount Vernon IL

  • Today

    Today: Sunny, with a high near 48. South southwest wind 6 to 15 mph, with gusts as high as 23 mph.

    High: 48 °F

    Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 33. Southwest wind 7 to 13 mph, with gusts as high as 23 mph.

    Low: 33 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 53. Southwest wind around 6 mph.

    High: 53 °F

    Sunny

  • Wednesday Night

    Wednesday Night: A 40 percent chance of showers after midnight. Increasing clouds, with a low around 41. South wind 6 to 15 mph, with gusts as high as 25 mph.

    Low: 41 °F

    Mostly Cloudy
    then Chance
    Showers

  • Thursday

    Thursday: Showers and possibly a thunderstorm. High near 55. Breezy, with a south wind 14 to 21 mph becoming west northwest in the afternoon. Winds could gust as high as 31 mph. Chance of precipitation is 90%.

    High: 55 °F

    Breezy.
    Showers then
    Chance
    Showers

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 20. West northwest wind 10 to 15 mph, with gusts as high as 26 mph.

    Low: 20 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 36. West northwest wind 5 to 7 mph becoming south in the afternoon.

    High: 36 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 28. South wind 6 to 11 mph, with gusts as high as 21 mph.

    Low: 28 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 53. South southwest wind 8 to 14 mph, with gusts as high as 22 mph.

    High: 53 °F

    Mostly Sunny

Detailed Forecast

Today
Sunny, with a high near 48. South southwest wind 6 to 15 mph, with gusts as high as 23 mph.
Tonight
Mostly cloudy, with a low around 33. Southwest wind 7 to 13 mph, with gusts as high as 23 mph.
Wednesday
Sunny, with a high near 53. Southwest wind around 6 mph.
Wednesday Night
A 40 percent chance of showers after midnight. Increasing clouds, with a low around 41. South wind 6 to 15 mph, with gusts as high as 25 mph.
Thursday
Showers and possibly a thunderstorm. High near 55. Breezy, with a south wind 14 to 21 mph becoming west northwest in the afternoon. Winds could gust as high as 31 mph. Chance of precipitation is 90%.
Thursday Night
Partly cloudy, with a low around 20. West northwest wind 10 to 15 mph, with gusts as high as 26 mph.
Friday
Mostly sunny, with a high near 36. West northwest wind 5 to 7 mph becoming south in the afternoon.
Friday Night
Partly cloudy, with a low around 28. South wind 6 to 11 mph, with gusts as high as 21 mph.
Saturday
Mostly sunny, with a high near 53. South southwest wind 8 to 14 mph, with gusts as high as 22 mph.
Saturday Night
Mostly cloudy, with a low around 33. Southwest wind around 7 mph becoming north northwest after midnight.
Sunday
Partly sunny, with a high near 49. North northwest wind around 7 mph becoming northeast in the afternoon.
Sunday Night
A slight chance of showers. Mostly cloudy, with a low around 32. Northeast wind around 5 mph becoming calm.
Monday
Partly sunny, with a high near 47. East wind 5 to 7 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles ENE Mount Vernon IL
 38.33°N 88.86°W
Last Update:
8:11 am CST Dec 16, 2025
Forecast Valid:
9am CST Dec 16, 2025-6pm CST Dec 22, 2025
 
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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