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

  • This Afternoon

    This Afternoon: Sunny, with a high near 50. Calm wind.

    High: 50 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 38. Calm wind becoming south southwest 5 to 8 mph in the evening.

    Low: 38 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 63. South southwest wind 7 to 9 mph becoming north northwest in the afternoon.

    High: 63 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 30. North wind 3 to 7 mph.

    Low: 30 °F

    Decreasing
    Clouds

  • 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 slight 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

Detailed Forecast

This Afternoon
Sunny, with a high near 50. Calm wind.
Tonight
Partly cloudy, with a low around 38. Calm wind becoming south southwest 5 to 8 mph in the evening.
Tuesday
Mostly sunny, with a high near 63. South southwest wind 7 to 9 mph becoming north northwest in the afternoon.
Tuesday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 30. North wind 3 to 7 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 slight 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. 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.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles W Nason IL
 38.18°N 89.01°W
Last Update:
1:17 pm CST Feb 9, 2026
Forecast Valid:
1pm CST Feb 9, 2026-6pm CST Feb 15, 2026
 
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Additional Resources

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Chance of Precipitation