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Hazardous Weather Conditions

Current conditions at

Mount Vernon Airport (KMVN)

Lat: 38.33°NLon: 88.85°WElev: 466ft.

51°F

11°C

Humidity 92%
Wind Speed N 3 mph
Barometer 29.89 in (1012.4 mb)
Dewpoint 49°F (9°C)
Visibility 10.00 mi
Last update 21 Mar 2:56 am CDT
Extended Forecast for

Mount Vernon IL

  • Overnight

    Overnight: Mostly clear, with a steady temperature around 57. East northeast wind 3 to 6 mph.

    Low: 57 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 84. East northeast wind 5 to 7 mph becoming south southwest in the afternoon.

    High: 84 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 62. South wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 62 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 85. South southwest wind 11 to 16 mph, with gusts as high as 25 mph.

    High: 85 °F

    Sunny

  • Sunday Night

    Sunday Night: A 30 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 38. Breezy, with a north wind 14 to 20 mph, with gusts as high as 30 mph.

    Low: 38 °F

    Chance
    T-storms and
    Breezy

  • Monday

    Monday: Mostly sunny, with a high near 57. North northeast wind 8 to 10 mph, with gusts as high as 18 mph.

    High: 57 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 40. East northeast wind around 5 mph.

    Low: 40 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 61. South southeast wind around 6 mph.

    High: 61 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: A slight chance of showers. Mostly cloudy, with a low around 44. Light south southeast wind.

    Low: 44 °F

    Slight Chance
    Showers

Detailed Forecast

Overnight
Mostly clear, with a steady temperature around 57. East northeast wind 3 to 6 mph.
Saturday
Sunny, with a high near 84. East northeast wind 5 to 7 mph becoming south southwest in the afternoon.
Saturday Night
Mostly clear, with a low around 62. South wind 5 to 10 mph, with gusts as high as 20 mph.
Sunday
Sunny, with a high near 85. South southwest wind 11 to 16 mph, with gusts as high as 25 mph.
Sunday Night
A 30 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 38. Breezy, with a north wind 14 to 20 mph, with gusts as high as 30 mph.
Monday
Mostly sunny, with a high near 57. North northeast wind 8 to 10 mph, with gusts as high as 18 mph.
Monday Night
Mostly cloudy, with a low around 40. East northeast wind around 5 mph.
Tuesday
Partly sunny, with a high near 61. South southeast wind around 6 mph.
Tuesday Night
A slight chance of showers. Mostly cloudy, with a low around 44. Light south southeast wind.
Wednesday
A slight chance of showers before 1pm. Partly sunny, with a high near 69. South wind 5 to 8 mph.
Wednesday Night
A slight chance of showers. Mostly cloudy, with a low around 55. South wind 6 to 8 mph.
Thursday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 80. South southwest wind 8 to 11 mph, with gusts as high as 20 mph.
Thursday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 48. North wind around 10 mph, with gusts as high as 20 mph.
Friday
A chance of showers. Mostly sunny, with a high near 59. North northeast wind around 11 mph, with gusts as high as 20 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Mount Vernon IL
 38.31°N 88.91°W
Last Update:
1:46 am CDT Mar 21, 2026
Forecast Valid:
3am CDT Mar 21, 2026-6pm CDT Mar 27, 2026
 
Forecast Discussion
 
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Additional Resources

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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