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.

Fair

36°F

2°C

Humidity 86%
Wind Speed Calm
Barometer 30.10 in (1019.6 mb)
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Last update 14 Mar 1:56 am CDT
Extended Forecast for

2 Miles W Nason IL

  • Overnight

    Overnight: Partly cloudy, with a steady temperature around 40. East northeast wind around 5 mph.

    Low: 40 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 65. East northeast wind 6 to 11 mph becoming southeast in the afternoon. Winds could gust as high as 18 mph.

    High: 65 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 53. South wind 7 to 14 mph, with gusts as high as 25 mph.

    Low: 53 °F

    Partly Cloudy

  • Sunday

    Sunday: Showers likely and possibly a thunderstorm, mainly after 4pm. Mostly cloudy, with a high near 70. Breezy, with a south wind 18 to 26 mph, with gusts as high as 39 mph. Chance of precipitation is 70%.

    High: 70 °F

    Breezy.
    Mostly Cloudy
    then Showers
    Likely

  • Sunday Night

    Sunday Night: Rain showers before 1am, then a chance of rain and snow showers between 1am and 4am, then a chance of snow showers after 4am. Some thunder is also possible. Low around 24. Breezy, with a south wind 23 to 25 mph becoming west after midnight. Winds could gust as high as 39 mph. Chance of precipitation is 100%.

    Low: 24 °F

    Breezy.
    Showers then
    Rain/Snow

  • Monday

    Monday: A 20 percent chance of snow showers before 1pm. Mostly cloudy, with a high near 31. Blustery, with a west northwest wind 21 to 23 mph, with gusts as high as 36 mph.

    High: 31 °F

    Slight Chance
    Snow Showers
    and Blustery

  • Monday Night

    Monday Night: Partly cloudy, with a low around 13. West northwest wind 9 to 18 mph, with gusts as high as 28 mph.

    Low: 13 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 37. West wind around 7 mph.

    High: 37 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A chance of snow showers after 1am. Mostly cloudy, with a low around 28. Light south wind increasing to 10 to 15 mph in the evening. Winds could gust as high as 24 mph.

    Low: 28 °F

    Mostly Cloudy
    then Chance
    Snow Showers

Detailed Forecast

Overnight
Partly cloudy, with a steady temperature around 40. East northeast wind around 5 mph.
Saturday
Mostly sunny, with a high near 65. East northeast wind 6 to 11 mph becoming southeast in the afternoon. Winds could gust as high as 18 mph.
Saturday Night
Partly cloudy, with a low around 53. South wind 7 to 14 mph, with gusts as high as 25 mph.
Sunday
Showers likely and possibly a thunderstorm, mainly after 4pm. Mostly cloudy, with a high near 70. Breezy, with a south wind 18 to 26 mph, with gusts as high as 39 mph. Chance of precipitation is 70%.
Sunday Night
Rain showers before 1am, then a chance of rain and snow showers between 1am and 4am, then a chance of snow showers after 4am. Some thunder is also possible. Low around 24. Breezy, with a south wind 23 to 25 mph becoming west after midnight. Winds could gust as high as 39 mph. Chance of precipitation is 100%.
Monday
A 20 percent chance of snow showers before 1pm. Mostly cloudy, with a high near 31. Blustery, with a west northwest wind 21 to 23 mph, with gusts as high as 36 mph.
Monday Night
Partly cloudy, with a low around 13. West northwest wind 9 to 18 mph, with gusts as high as 28 mph.
Tuesday
Sunny, with a high near 37. West wind around 7 mph.
Tuesday Night
A chance of snow showers after 1am. Mostly cloudy, with a low around 28. Light south wind increasing to 10 to 15 mph in the evening. Winds could gust as high as 24 mph.
Wednesday
Partly sunny, with a high near 59. South southwest wind 13 to 16 mph, with gusts as high as 25 mph.
Wednesday Night
Mostly clear, with a low around 40. South wind 5 to 7 mph.
Thursday
Sunny, with a high near 70. Southwest wind around 6 mph.
Thursday Night
Partly cloudy, with a low around 47. South southwest wind 3 to 6 mph.
Friday
Sunny, with a high near 70. Southwest wind 6 to 9 mph becoming west northwest in the afternoon.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles W Nason IL
 38.18°N 89.01°W
Last Update:
1:26 am CDT Mar 14, 2026
Forecast Valid:
2am CDT Mar 14, 2026-6pm CDT Mar 20, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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