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.

N/A

Humidity NA
Wind Speed NA
Barometer NA
Dewpoint N/A
Visibility NA
Last update *** Not a current observation ***
Extended Forecast for

Mount Vernon IL

  • Overnight

    Overnight: Partly cloudy, with a steady temperature around 37. Calm wind.

    Low: 37 °F

    Partly Cloudy

  • Saturday

    Saturday: Showers, mainly after 1pm. High near 53. Calm wind becoming south southeast around 6 mph in the afternoon. Chance of precipitation is 80%.

    High: 53 °F

    Chance
    Showers then
    Showers

  • Saturday Night

    Saturday Night: Showers. Steady temperature around 48. East wind around 6 mph. Chance of precipitation is 100%.

    Low: 48 °F

    Showers

  • Sunday

    Sunday: A 30 percent chance of showers before noon. Cloudy, then gradually becoming mostly sunny, with a high near 55. North northeast wind 5 to 9 mph.

    High: 55 °F

    Chance
    Showers then
    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 38. Light north northeast wind.

    Low: 38 °F

    Mostly Clear

  • Washington's Birthday

    Washington's Birthday: Mostly sunny, with a high near 60. Calm wind becoming south around 6 mph in the afternoon.

    High: 60 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 44. South wind 3 to 5 mph.

    Low: 44 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 63. South wind 5 to 11 mph, with gusts as high as 20 mph.

    High: 63 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 55. South southwest wind 11 to 14 mph, with gusts as high as 24 mph.

    Low: 55 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Partly cloudy, with a steady temperature around 37. Calm wind.
Saturday
Showers, mainly after 1pm. High near 53. Calm wind becoming south southeast around 6 mph in the afternoon. Chance of precipitation is 80%.
Saturday Night
Showers. Steady temperature around 48. East wind around 6 mph. Chance of precipitation is 100%.
Sunday
A 30 percent chance of showers before noon. Cloudy, then gradually becoming mostly sunny, with a high near 55. North northeast wind 5 to 9 mph.
Sunday Night
Mostly clear, with a low around 38. Light north northeast wind.
Washington's Birthday
Mostly sunny, with a high near 60. Calm wind becoming south around 6 mph in the afternoon.
Monday Night
Mostly cloudy, with a low around 44. South wind 3 to 5 mph.
Tuesday
Mostly cloudy, with a high near 63. South wind 5 to 11 mph, with gusts as high as 20 mph.
Tuesday Night
Mostly cloudy, with a low around 55. South southwest wind 11 to 14 mph, with gusts as high as 24 mph.
Wednesday
Partly sunny, with a high near 71. Southwest wind 8 to 14 mph, with gusts as high as 22 mph.
Wednesday Night
Mostly cloudy, with a low around 50. South southwest wind around 8 mph.
Thursday
A chance of showers. Partly sunny, with a high near 67. South southwest wind 7 to 13 mph, with gusts as high as 21 mph.
Thursday Night
A slight chance of showers. Partly cloudy, with a low around 42. South southwest wind 8 to 11 mph becoming west after midnight. Winds could gust as high as 20 mph.
Friday
Mostly sunny, with a high near 56. West wind 7 to 10 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Mount Vernon IL
 38.31°N 88.91°W
Last Update:
11:32 pm CST Feb 13, 2026
Forecast Valid:
1am CST Feb 14, 2026-6pm CST Feb 20, 2026
 
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