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

Hazardous Weather Conditions

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 3. West northwest wind 3 to 5 mph.

    Low: 3 °F

    Mostly Clear

  • Sunday

    Sunday: Increasing clouds, with a high near 29. Wind chill values as low as -3. Calm wind becoming south 5 to 9 mph in the morning.

    High: 29 °F

    Increasing
    Clouds

  • Sunday Night

    Sunday Night: A 50 percent chance of snow, mainly before 8pm. Mostly cloudy, with a low around 19. South southwest wind 3 to 7 mph.

    Low: 19 °F

    Chance Snow
    then Mostly
    Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 38. West southwest wind 3 to 6 mph.

    High: 38 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 25. Calm wind.

    Low: 25 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A slight chance of rain and snow showers before noon, then a chance of snow showers. Cloudy, with a high near 34. Calm wind becoming north northeast 5 to 7 mph in the morning. Chance of precipitation is 40%.

    High: 34 °F

    Slight Chance
    Rain/Snow
    then Chance
    Snow Showers

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 17. North wind around 6 mph.

    Low: 17 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 28. North wind 5 to 7 mph.

    High: 28 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 9. Light and variable wind.

    Low: 9 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around 3. West northwest wind 3 to 5 mph.
Sunday
Increasing clouds, with a high near 29. Wind chill values as low as -3. Calm wind becoming south 5 to 9 mph in the morning.
Sunday Night
A 50 percent chance of snow, mainly before 8pm. Mostly cloudy, with a low around 19. South southwest wind 3 to 7 mph.
Monday
Mostly sunny, with a high near 38. West southwest wind 3 to 6 mph.
Monday Night
Mostly cloudy, with a low around 25. Calm wind.
Tuesday
A slight chance of rain and snow showers before noon, then a chance of snow showers. Cloudy, with a high near 34. Calm wind becoming north northeast 5 to 7 mph in the morning. Chance of precipitation is 40%.
Tuesday Night
Mostly cloudy, with a low around 17. North wind around 6 mph.
Wednesday
Partly sunny, with a high near 28. North wind 5 to 7 mph.
Wednesday Night
Partly cloudy, with a low around 9. Light and variable wind.
Thursday
Mostly sunny, with a high near 33. Calm wind becoming southwest 5 to 7 mph in the afternoon.
Thursday Night
Partly cloudy, with a low around 24. South southwest wind 6 to 9 mph.
Friday
Mostly sunny, with a high near 42. West southwest wind 7 to 10 mph becoming northwest in the afternoon.
Friday Night
Partly cloudy, with a low around 22. North northwest wind around 6 mph.
Saturday
Mostly sunny, with a high near 34. North wind around 6 mph becoming east in the afternoon.
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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:
8:41 pm CST Jan 31, 2026
Forecast Valid:
12am CST Feb 1, 2026-6pm CST Feb 7, 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