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

N/A

Humidity NA
Wind Speed SW 17 mph
Barometer 29.67 in
Dewpoint N/A
Visibility 10.00 mi
Last update 15 Nov 12:56 pm CST
Extended Forecast for

4 Miles NW Mount Vernon IL

  • This Afternoon

    This Afternoon: Sunny, with a high near 78. Southwest wind 8 to 16 mph, with gusts as high as 24 mph.

    High: 78 °F

    Sunny

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming clear, with a low around 43. North northwest wind 7 to 10 mph, with gusts as high as 18 mph.

    Low: 43 °F

    Decreasing
    Clouds

  • Sunday

    Sunday: Sunny, with a high near 58. North wind 6 to 9 mph.

    High: 58 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 33. Calm wind.

    Low: 33 °F

    Clear

  • Monday

    Monday: A 20 percent chance of showers after noon. Mostly sunny, with a high near 60. Calm wind becoming southeast 5 to 8 mph in the morning.

    High: 60 °F

    Sunny then
    Slight Chance
    Showers

  • Monday Night

    Monday Night: Showers likely, then showers and possibly a thunderstorm after midnight. Low around 45. Southeast wind 7 to 9 mph. Chance of precipitation is 80%.

    Low: 45 °F

    Showers

  • Tuesday

    Tuesday: A chance of showers and thunderstorms. Partly sunny, with a high near 70. South wind 9 to 11 mph. Chance of precipitation is 50%.

    High: 70 °F

    Chance
    T-storms then
    Chance
    Showers

  • Tuesday Night

    Tuesday Night: A chance of showers. Mostly cloudy, with a low around 48. East southeast wind 5 to 8 mph becoming northeast after midnight.

    Low: 48 °F

    Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers. Mostly cloudy, with a high near 65. East northeast wind around 6 mph becoming south in the morning.

    High: 65 °F

    Chance
    Showers

Detailed Forecast

This Afternoon
Sunny, with a high near 78. Southwest wind 8 to 16 mph, with gusts as high as 24 mph.
Tonight
Mostly cloudy, then gradually becoming clear, with a low around 43. North northwest wind 7 to 10 mph, with gusts as high as 18 mph.
Sunday
Sunny, with a high near 58. North wind 6 to 9 mph.
Sunday Night
Clear, with a low around 33. Calm wind.
Monday
A 20 percent chance of showers after noon. Mostly sunny, with a high near 60. Calm wind becoming southeast 5 to 8 mph in the morning.
Monday Night
Showers likely, then showers and possibly a thunderstorm after midnight. Low around 45. Southeast wind 7 to 9 mph. Chance of precipitation is 80%.
Tuesday
A chance of showers and thunderstorms. Partly sunny, with a high near 70. South wind 9 to 11 mph. Chance of precipitation is 50%.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 48. East southeast wind 5 to 8 mph becoming northeast after midnight.
Wednesday
A chance of showers. Mostly cloudy, with a high near 65. East northeast wind around 6 mph becoming south in the morning.
Wednesday Night
Showers likely, mainly after midnight. Mostly cloudy, with a low around 51. East wind 3 to 6 mph.
Thursday
Showers. Cloudy, with a high near 66. South southeast wind 6 to 11 mph.
Thursday Night
Showers and possibly a thunderstorm. Mostly cloudy, with a low around 53. South wind 9 to 11 mph.
Friday
Showers likely. Partly sunny, with a high near 65. Southwest wind 11 to 14 mph, with gusts as high as 20 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NW Mount Vernon IL
 38.36°N 88.94°W
Last Update:
12:51 pm CST Nov 15, 2025
Forecast Valid:
1pm CST Nov 15, 2025-6pm CST Nov 21, 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