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

  • Overnight

    Overnight: Mostly clear, with a low around 33. South wind 5 to 7 mph.

    Low: 33 °F

    Mostly Clear

  • Tuesday

    Tuesday: Increasing clouds, with a high near 64. South southwest wind 7 to 10 mph becoming north northwest in the afternoon. Winds could gust as high as 20 mph.

    High: 64 °F

    Increasing
    Clouds

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 29. North wind 6 to 8 mph.

    Low: 29 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 49. North northwest wind 3 to 6 mph.

    High: 49 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 30. Calm wind.

    Low: 30 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly cloudy, with a high near 47. Calm wind becoming east southeast around 6 mph in the afternoon.

    High: 47 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: A 20 percent chance of showers. Mostly cloudy, with a low around 32. Light east wind.

    Low: 32 °F

    Slight Chance
    Showers

  • Friday

    Friday: Mostly cloudy, with a high near 47. East wind 3 to 6 mph.

    High: 47 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: A chance of showers after midnight. Mostly cloudy, with a low around 35. East wind 3 to 7 mph.

    Low: 35 °F

    Mostly Cloudy
    then Chance
    Showers

Detailed Forecast

Overnight
Mostly clear, with a low around 33. South wind 5 to 7 mph.
Tuesday
Increasing clouds, with a high near 64. South southwest wind 7 to 10 mph becoming north northwest in the afternoon. Winds could gust as high as 20 mph.
Tuesday Night
Mostly cloudy, with a low around 29. North wind 6 to 8 mph.
Wednesday
Sunny, with a high near 49. North northwest wind 3 to 6 mph.
Wednesday Night
Mostly cloudy, with a low around 30. Calm wind.
Thursday
Mostly cloudy, with a high near 47. Calm wind becoming east southeast around 6 mph in the afternoon.
Thursday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 32. Light east wind.
Friday
Mostly cloudy, with a high near 47. East wind 3 to 6 mph.
Friday Night
A chance of showers after midnight. Mostly cloudy, with a low around 35. East wind 3 to 7 mph.
Saturday
Showers likely, mainly after noon. Cloudy, with a high near 49. East wind 7 to 10 mph, with gusts as high as 18 mph.
Saturday Night
Showers. Cloudy, with a low around 39. East wind around 10 mph, with gusts as high as 21 mph.
Sunday
A chance of showers. Partly sunny, with a high near 52. North northeast wind 8 to 13 mph becoming northwest in the afternoon. Winds could gust as high as 20 mph.
Sunday Night
Mostly clear, with a low around 35. Northwest wind 3 to 7 mph.
Washington's Birthday
Sunny, with a high near 57. Light and variable wind becoming south 5 to 8 mph in the morning.
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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:
11:07 pm CST Feb 9, 2026
Forecast Valid:
2am CST Feb 10, 2026-6pm CST Feb 16, 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