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: Sunny, with a high near 48. North northwest wind 5 to 7 mph.

    High: 48 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 28. Light and variable wind.

    Low: 28 °F

    Increasing
    Clouds

  • Thursday

    Thursday: Mostly cloudy, with a high near 48. Light east southeast wind.

    High: 48 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 31. Calm wind.

    Low: 31 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 55. Calm wind becoming south southeast around 5 mph.

    High: 55 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 36. Calm wind.

    Low: 36 °F

    Mostly Cloudy

  • Saturday

    Saturday: A 30 percent chance of showers, mainly after noon. Mostly cloudy, with a high near 52. Calm wind becoming east southeast around 6 mph in the morning.

    High: 52 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: A chance of showers. Mostly cloudy, with a low around 42. East wind around 6 mph.

    Low: 42 °F

    Chance
    Showers

  • Sunday

    Sunday: A chance of showers before noon. Mostly sunny, with a high near 54. North wind 5 to 8 mph.

    High: 54 °F

    Chance
    Showers then
    Mostly Sunny

Detailed Forecast

Today
Sunny, with a high near 48. North northwest wind 5 to 7 mph.
Tonight
Increasing clouds, with a low around 28. Light and variable wind.
Thursday
Mostly cloudy, with a high near 48. Light east southeast wind.
Thursday Night
Mostly cloudy, with a low around 31. Calm wind.
Friday
Mostly sunny, with a high near 55. Calm wind becoming south southeast around 5 mph.
Friday Night
Mostly cloudy, with a low around 36. Calm wind.
Saturday
A 30 percent chance of showers, mainly after noon. Mostly cloudy, with a high near 52. Calm wind becoming east southeast around 6 mph in the morning.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 42. East wind around 6 mph.
Sunday
A chance of showers before noon. Mostly sunny, with a high near 54. North wind 5 to 8 mph.
Sunday Night
Mostly clear, with a low around 38. Light and variable wind.
Washington's Birthday
Mostly sunny, with a high near 59. Calm wind becoming south southeast 5 to 8 mph in the morning.
Monday Night
Mostly cloudy, with a low around 44. South wind 5 to 7 mph.
Tuesday
Mostly cloudy, with a high near 63. South wind 7 to 14 mph, with gusts as high as 23 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:
8:12 am CST Feb 11, 2026
Forecast Valid:
9am CST Feb 11, 2026-6pm CST Feb 17, 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