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.

Fair

64°F

18°C

Humidity 52%
Wind Speed S 10 mph
Barometer 30.15 in (1021.0 mb)
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 9 Apr 11:56 pm CDT
Extended Forecast for

2 Miles W Nason IL

  • Overnight

    Overnight: Partly cloudy, with a low around 57. South wind around 8 mph, with gusts as high as 18 mph.

    Low: 57 °F

    Partly Cloudy

  • Friday

    Friday: A 50 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 77. South southwest wind 7 to 10 mph becoming northwest in the afternoon. Winds could gust as high as 18 mph.

    High: 77 °F

    Mostly Sunny
    then Chance
    T-storms

  • Friday Night

    Friday Night: A 30 percent chance of showers and thunderstorms, mainly between 4am and 5am. Mostly cloudy, with a low around 53. North northwest wind around 5 mph becoming light and variable.

    Low: 53 °F

    Chance
    Showers

  • Saturday

    Saturday: A chance of showers and thunderstorms before 7am, then a slight chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 76. East northeast wind around 6 mph becoming southeast in the afternoon. Chance of precipitation is 30%.

    High: 76 °F

    Chance
    Showers then
    Slight Chance
    T-storms

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 60. Southeast wind around 6 mph.

    Low: 60 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 82. South southwest wind 7 to 17 mph, with gusts as high as 25 mph.

    High: 82 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 66. South southwest wind around 14 mph, with gusts as high as 24 mph.

    Low: 66 °F

    Chance
    Showers

  • Monday

    Monday: A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 83. South southwest wind 13 to 16 mph, with gusts as high as 24 mph.

    High: 83 °F

    Chance
    Showers then
    Chance
    T-storms

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 68. South southwest wind 10 to 13 mph, with gusts as high as 22 mph.

    Low: 68 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Partly cloudy, with a low around 57. South wind around 8 mph, with gusts as high as 18 mph.
Friday
A 50 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 77. South southwest wind 7 to 10 mph becoming northwest in the afternoon. Winds could gust as high as 18 mph.
Friday Night
A 30 percent chance of showers and thunderstorms, mainly between 4am and 5am. Mostly cloudy, with a low around 53. North northwest wind around 5 mph becoming light and variable.
Saturday
A chance of showers and thunderstorms before 7am, then a slight chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 76. East northeast wind around 6 mph becoming southeast in the afternoon. Chance of precipitation is 30%.
Saturday Night
Partly cloudy, with a low around 60. Southeast wind around 6 mph.
Sunday
Partly sunny, with a high near 82. South southwest wind 7 to 17 mph, with gusts as high as 25 mph.
Sunday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 66. South southwest wind around 14 mph, with gusts as high as 24 mph.
Monday
A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 83. South southwest wind 13 to 16 mph, with gusts as high as 24 mph.
Monday Night
Mostly cloudy, with a low around 68. South southwest wind 10 to 13 mph, with gusts as high as 22 mph.
Tuesday
A slight chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 85. South southwest wind 10 to 16 mph, with gusts as high as 25 mph.
Tuesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 68. South southwest wind around 13 mph, with gusts as high as 22 mph.
Wednesday
A chance of showers and thunderstorms. Partly sunny, with a high near 85. Southwest wind 11 to 15 mph, with gusts as high as 22 mph.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 61. Southwest wind 6 to 9 mph.
Thursday
A chance of showers and thunderstorms. Partly sunny, with a high near 80. South wind 6 to 10 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:
12:22 am CDT Apr 10, 2026
Forecast Valid:
12am CDT Apr 10, 2026-6pm CDT Apr 16, 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