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: Partly sunny, with a high near 51. Calm wind becoming east southeast 5 to 7 mph in the morning.

    High: 51 °F

    Partly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 30. Southeast wind 3 to 5 mph.

    Low: 30 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 57. Calm wind becoming south southeast around 6 mph.

    High: 57 °F

    Sunny

  • Friday Night

    Friday Night: Increasing clouds, with a low around 36. Calm wind.

    Low: 36 °F

    Increasing
    Clouds

  • Saturday

    Saturday: Rain likely, mainly after noon. Cloudy, with a high near 53. Calm wind becoming southeast 5 to 7 mph in the morning. Chance of precipitation is 60%.

    High: 53 °F

    Chance Rain
    then Rain
    Likely

  • Saturday Night

    Saturday Night: Rain. Low around 44. East wind 6 to 8 mph. Chance of precipitation is 80%.

    Low: 44 °F

    Rain

  • Sunday

    Sunday: A 40 percent chance of rain, mainly before noon. Partly sunny, with a high near 56. North northeast wind 6 to 10 mph.

    High: 56 °F

    Chance Rain

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 35. North wind around 5 mph becoming calm in the evening.

    Low: 35 °F

    Mostly Clear

  • Washington's Birthday

    Washington's Birthday: Mostly sunny, with a high near 60. Calm wind becoming south 5 to 7 mph in the morning.

    High: 60 °F

    Mostly Sunny

Detailed Forecast

Today
Partly sunny, with a high near 51. Calm wind becoming east southeast 5 to 7 mph in the morning.
Tonight
Partly cloudy, with a low around 30. Southeast wind 3 to 5 mph.
Friday
Sunny, with a high near 57. Calm wind becoming south southeast around 6 mph.
Friday Night
Increasing clouds, with a low around 36. Calm wind.
Saturday
Rain likely, mainly after noon. Cloudy, with a high near 53. Calm wind becoming southeast 5 to 7 mph in the morning. Chance of precipitation is 60%.
Saturday Night
Rain. Low around 44. East wind 6 to 8 mph. Chance of precipitation is 80%.
Sunday
A 40 percent chance of rain, mainly before noon. Partly sunny, with a high near 56. North northeast wind 6 to 10 mph.
Sunday Night
Mostly clear, with a low around 35. North wind around 5 mph becoming calm in the evening.
Washington's Birthday
Mostly sunny, with a high near 60. Calm wind becoming south 5 to 7 mph in the morning.
Monday Night
Mostly cloudy, with a low around 44. South wind around 6 mph.
Tuesday
Mostly cloudy, with a high near 64. South wind 6 to 14 mph, with gusts as high as 22 mph.
Tuesday Night
Mostly cloudy, with a low around 54. South southwest wind around 14 mph, with gusts as high as 25 mph.
Wednesday
A slight chance of rain. Mostly cloudy, with a high near 65. West southwest wind 10 to 14 mph, with gusts as high as 24 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:
5:06 am CST Feb 12, 2026
Forecast Valid:
8am CST Feb 12, 2026-6pm CST Feb 18, 2026
 
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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