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.

Fog

N/A

Humidity NA
Wind Speed Calm
Barometer 30.17 in
Dewpoint N/A
Visibility 0.25 mi
Last update 23 Nov 2:56 am CST
Extended Forecast for

5 Miles SW Mount Vernon IL

  • Overnight

    Overnight: Patchy fog. Otherwise, partly cloudy early, then becoming cloudy, with a low around 39. Calm wind.

    Low: 39 °F

    Patchy Fog

  • Sunday

    Sunday: Patchy fog before 11am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 58. Light and variable wind.

    High: 58 °F

    Patchy Fog
    then Sunny

  • Sunday Night

    Sunday Night: Patchy fog between 8pm and 1am. Otherwise, increasing clouds, with a low around 41. Calm wind.

    Low: 41 °F

    Patchy Fog

  • Monday

    Monday: A 50 percent chance of showers after noon. Cloudy, with a high near 59. South southeast wind 3 to 8 mph.

    High: 59 °F

    Mostly Cloudy
    then Chance
    Showers

  • Monday Night

    Monday Night: Showers. Low around 50. South southeast wind 3 to 6 mph. Chance of precipitation is 100%.

    Low: 50 °F

    Showers

  • Tuesday

    Tuesday: A 20 percent chance of showers. Mostly cloudy, with a high near 63. West wind 3 to 8 mph.

    High: 63 °F

    Slight Chance
    Showers

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 37. Light west southwest wind becoming west northwest 6 to 11 mph in the evening. Winds could gust as high as 20 mph.

    Low: 37 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 47. West northwest wind 8 to 16 mph, with gusts as high as 22 mph.

    High: 47 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 27. West northwest wind 3 to 6 mph.

    Low: 27 °F

    Partly Cloudy

Detailed Forecast

Overnight
Patchy fog. Otherwise, partly cloudy early, then becoming cloudy, with a low around 39. Calm wind.
Sunday
Patchy fog before 11am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 58. Light and variable wind.
Sunday Night
Patchy fog between 8pm and 1am. Otherwise, increasing clouds, with a low around 41. Calm wind.
Monday
A 50 percent chance of showers after noon. Cloudy, with a high near 59. South southeast wind 3 to 8 mph.
Monday Night
Showers. Low around 50. South southeast wind 3 to 6 mph. Chance of precipitation is 100%.
Tuesday
A 20 percent chance of showers. Mostly cloudy, with a high near 63. West wind 3 to 8 mph.
Tuesday Night
Partly cloudy, with a low around 37. Light west southwest wind becoming west northwest 6 to 11 mph in the evening. Winds could gust as high as 20 mph.
Wednesday
Sunny, with a high near 47. West northwest wind 8 to 16 mph, with gusts as high as 22 mph.
Wednesday Night
Partly cloudy, with a low around 27. West northwest wind 3 to 6 mph.
Thanksgiving Day
Sunny, with a high near 45. Light west northwest wind increasing to 5 to 9 mph in the morning.
Thursday Night
Partly cloudy, with a low around 25. Light and variable wind.
Friday
Partly sunny, with a high near 46. Calm wind becoming south southwest 5 to 7 mph in the morning.
Friday Night
A slight chance of showers. Mostly cloudy, with a low around 31. South southeast wind 3 to 6 mph.
Saturday
A chance of showers. Mostly cloudy, with a high near 49. South southeast wind 6 to 10 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SW Mount Vernon IL
 38.27°N 88.97°W
Last Update:
3:16 am CST Nov 23, 2025
Forecast Valid:
3am CST Nov 23, 2025-6pm CST Nov 29, 2025
 
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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