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.

Overcast with Haze

N/A

Humidity NA
Wind Speed E 6 mph
Barometer 30.06 in
Dewpoint N/A
Visibility 4.00 mi
Last update 20 Nov 11:56 am CST
Extended Forecast for

3 Miles S Mount Vernon IL

  • This Afternoon

    This Afternoon: A 50 percent chance of showers. Cloudy, with a high near 58. East southeast wind 3 to 6 mph.

    High: 58 °F

    Chance
    Showers

  • Tonight

    Tonight: Showers and thunderstorms likely, then showers after 2am. Patchy fog after 7pm. Low around 52. Calm wind. Chance of precipitation is 90%.

    Low: 52 °F

    Showers and
    Patchy Fog

  • Friday

    Friday: Showers, with thunderstorms also possible after noon. High near 66. Calm wind becoming southwest 5 to 9 mph in the morning. Chance of precipitation is 100%.

    High: 66 °F

    Showers

  • Friday Night

    Friday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 46. North northeast wind around 6 mph. Chance of precipitation is 70%.

    Low: 46 °F

    Showers
    Likely then
    Slight Chance
    Showers

  • Saturday

    Saturday: Mostly sunny, with a high near 59. North northeast wind 3 to 6 mph.

    High: 59 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 37. Calm wind.

    Low: 37 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 62. Calm wind becoming southwest around 6 mph.

    High: 62 °F

    Sunny

  • Sunday Night

    Sunday Night: A slight chance of showers after midnight. Mostly cloudy, with a low around 42. Calm wind.

    Low: 42 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Monday

    Monday: A chance of showers. Mostly cloudy, with a high near 60. Calm wind becoming east southeast 5 to 8 mph in the morning.

    High: 60 °F

    Chance
    Showers

Detailed Forecast

This Afternoon
A 50 percent chance of showers. Cloudy, with a high near 58. East southeast wind 3 to 6 mph.
Tonight
Showers and thunderstorms likely, then showers after 2am. Patchy fog after 7pm. Low around 52. Calm wind. Chance of precipitation is 90%.
Friday
Showers, with thunderstorms also possible after noon. High near 66. Calm wind becoming southwest 5 to 9 mph in the morning. Chance of precipitation is 100%.
Friday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 46. North northeast wind around 6 mph. Chance of precipitation is 70%.
Saturday
Mostly sunny, with a high near 59. North northeast wind 3 to 6 mph.
Saturday Night
Mostly clear, with a low around 37. Calm wind.
Sunday
Sunny, with a high near 62. Calm wind becoming southwest around 6 mph.
Sunday Night
A slight chance of showers after midnight. Mostly cloudy, with a low around 42. Calm wind.
Monday
A chance of showers. Mostly cloudy, with a high near 60. Calm wind becoming east southeast 5 to 8 mph in the morning.
Monday Night
Showers. Mostly cloudy, with a low around 49. South southeast wind around 7 mph.
Tuesday
A chance of showers. Partly sunny, with a high near 62. South wind 7 to 10 mph becoming west in the afternoon.
Tuesday Night
Partly cloudy, with a low around 41. West wind 3 to 6 mph.
Wednesday
Partly sunny, with a high near 54. Northwest wind 6 to 9 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles S Mount Vernon IL
 38.29°N 88.89°W
Last Update:
9:56 am CST Nov 20, 2025
Forecast Valid:
12pm CST Nov 20, 2025-6pm CST Nov 26, 2025
 
Forecast Discussion
 
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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