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

2 Miles W Nason IL

  • Today

    Today: Increasing clouds, with a high near 44. West southwest wind 9 to 15 mph becoming north northwest in the morning. Winds could gust as high as 24 mph.

    High: 44 °F

    Increasing
    Clouds

  • Tonight

    Tonight: Mostly cloudy, with a low around 21. North northwest wind 6 to 9 mph, with gusts as high as 18 mph.

    Low: 21 °F

    Mostly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 34. North northeast wind around 6 mph becoming calm in the afternoon.

    High: 34 °F

    Sunny

  • Saturday Night

    Saturday Night: Increasing clouds, with a low around 23. Calm wind becoming south southeast around 6 mph after midnight.

    Low: 23 °F

    Increasing
    Clouds

  • Sunday

    Sunday: Mostly sunny, with a high near 48. South wind 5 to 8 mph.

    High: 48 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 30. Light and variable wind.

    Low: 30 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 57. Light and variable wind.

    High: 57 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 40. Calm wind becoming south around 6 mph after midnight.

    Low: 40 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A chance of showers, mainly after noon. Mostly cloudy, with a high near 63. Southwest wind 6 to 9 mph.

    High: 63 °F

    Chance
    Showers

Detailed Forecast

Today
Increasing clouds, with a high near 44. West southwest wind 9 to 15 mph becoming north northwest in the morning. Winds could gust as high as 24 mph.
Tonight
Mostly cloudy, with a low around 21. North northwest wind 6 to 9 mph, with gusts as high as 18 mph.
Saturday
Sunny, with a high near 34. North northeast wind around 6 mph becoming calm in the afternoon.
Saturday Night
Increasing clouds, with a low around 23. Calm wind becoming south southeast around 6 mph after midnight.
Sunday
Mostly sunny, with a high near 48. South wind 5 to 8 mph.
Sunday Night
Mostly clear, with a low around 30. Light and variable wind.
Monday
Sunny, with a high near 57. Light and variable wind.
Monday Night
Partly cloudy, with a low around 40. Calm wind becoming south around 6 mph after midnight.
Tuesday
A chance of showers, mainly after noon. Mostly cloudy, with a high near 63. Southwest wind 6 to 9 mph.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 40. Southwest wind 6 to 8 mph becoming northwest after midnight.
Wednesday
A slight chance of showers. Mostly cloudy, with a high near 52. North northwest wind 6 to 9 mph.
Wednesday Night
A slight chance of showers. Mostly cloudy, with a low around 31. North wind around 5 mph.
Thursday
A slight chance of showers. Mostly cloudy, with a high near 46. North wind 5 to 7 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles W Nason IL
 38.18°N 89.01°W
Last Update:
4:57 am CST Feb 6, 2026
Forecast Valid:
7am CST Feb 6, 2026-6pm CST Feb 12, 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