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 NNW Nason IL

  • Overnight

    Overnight: Mostly cloudy, with a low around 17. South southwest wind around 5 mph.

    Low: 17 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 37. Southwest wind 3 to 5 mph.

    High: 37 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 26. Light and variable wind.

    Low: 26 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A slight chance of snow before 8am, then a chance of freezing rain between 8am and noon, then a chance of snow after noon. Mostly cloudy, with a high near 35. Calm wind becoming north 5 to 8 mph in the morning. Chance of precipitation is 40%.

    High: 35 °F

    Chance Wintry
    Mix then
    Chance Snow

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 19. North wind 3 to 6 mph.

    Low: 19 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 30. North wind 3 to 6 mph.

    High: 30 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 12. Calm wind.

    Low: 12 °F

    Partly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 36. Calm wind becoming southwest 5 to 7 mph in the afternoon.

    High: 36 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 28. South wind 6 to 9 mph becoming west after midnight. Winds could gust as high as 18 mph.

    Low: 28 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 17. South southwest wind around 5 mph.
Monday
Partly sunny, with a high near 37. Southwest wind 3 to 5 mph.
Monday Night
Mostly cloudy, with a low around 26. Light and variable wind.
Tuesday
A slight chance of snow before 8am, then a chance of freezing rain between 8am and noon, then a chance of snow after noon. Mostly cloudy, with a high near 35. Calm wind becoming north 5 to 8 mph in the morning. Chance of precipitation is 40%.
Tuesday Night
Mostly cloudy, with a low around 19. North wind 3 to 6 mph.
Wednesday
Partly sunny, with a high near 30. North wind 3 to 6 mph.
Wednesday Night
Partly cloudy, with a low around 12. Calm wind.
Thursday
Partly sunny, with a high near 36. Calm wind becoming southwest 5 to 7 mph in the afternoon.
Thursday Night
Partly cloudy, with a low around 28. South wind 6 to 9 mph becoming west after midnight. Winds could gust as high as 18 mph.
Friday
Mostly sunny, with a high near 44. West wind 7 to 10 mph becoming north northwest in the afternoon.
Friday Night
Partly cloudy, with a low around 20. North northwest wind around 6 mph.
Saturday
Sunny, with a high near 36. North northeast wind 5 to 7 mph.
Saturday Night
Partly cloudy, with a low around 22. South southeast wind 3 to 6 mph.
Sunday
Mostly sunny, with a high near 40. South southeast wind around 6 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NNW Nason IL
 38.2°N 88.98°W
Last Update:
2:16 am CST Feb 2, 2026
Forecast Valid:
2am CST Feb 2, 2026-6pm CST Feb 8, 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