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.

Fair

67°F

19°C

Humidity 79%
Wind Speed S 13 mph
Barometer 29.89 in (1012.0 mb)
Dewpoint 60°F (16°C)
Visibility 10.00 mi
Last update 2 Apr 5:56 am CDT
Extended Forecast for

Mount Vernon IL

Wind Advisory April 2, 10:00am until April 2, 07:00pm
Click here for hazard details and duration
Wind Advisory

  • Today

    Today: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 4pm. Mostly cloudy, with a high near 79. Breezy, with a south wind 14 to 23 mph, with gusts as high as 41 mph. Chance of precipitation is 60%.

    High: 79 °F

    Breezy.
    Mostly Cloudy
    then Showers
    Likely

  • Tonight

    Tonight: A chance of showers and thunderstorms before 3am, then showers likely and possibly a thunderstorm between 3am and 4am, then a chance of showers and thunderstorms after 4am. Increasing clouds, with a low around 65. Breezy, with a south wind 10 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 60%.

    Low: 65 °F

    Chance
    T-storms and
    Breezy then
    Showers
    Likely

  • Friday

    Friday: A chance of showers and thunderstorms before 7am, then showers likely and possibly a thunderstorm between 7am and 1pm, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 81. South southwest wind 8 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 60%.

    High: 81 °F

    Showers
    Likely

  • Friday Night

    Friday Night: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1am. Low around 61. South wind 11 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 90%.

    Low: 61 °F

    Chance
    T-storms then
    Showers

  • Saturday

    Saturday: Showers and possibly a thunderstorm before 1pm, then a chance of showers. High near 67. South southwest wind 11 to 13 mph becoming west in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 90%.

    High: 67 °F

    Showers

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 40. West northwest wind 7 to 10 mph, with gusts as high as 18 mph.

    Low: 40 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 58. Northwest wind 7 to 11 mph.

    High: 58 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 37. Northwest wind around 6 mph becoming calm in the evening.

    Low: 37 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 64. Northwest wind 3 to 8 mph.

    High: 64 °F

    Sunny

Detailed Forecast

Today
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 4pm. Mostly cloudy, with a high near 79. Breezy, with a south wind 14 to 23 mph, with gusts as high as 41 mph. Chance of precipitation is 60%.
Tonight
A chance of showers and thunderstorms before 3am, then showers likely and possibly a thunderstorm between 3am and 4am, then a chance of showers and thunderstorms after 4am. Increasing clouds, with a low around 65. Breezy, with a south wind 10 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 60%.
Friday
A chance of showers and thunderstorms before 7am, then showers likely and possibly a thunderstorm between 7am and 1pm, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 81. South southwest wind 8 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 60%.
Friday Night
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1am. Low around 61. South wind 11 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 90%.
Saturday
Showers and possibly a thunderstorm before 1pm, then a chance of showers. High near 67. South southwest wind 11 to 13 mph becoming west in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 90%.
Saturday Night
Partly cloudy, with a low around 40. West northwest wind 7 to 10 mph, with gusts as high as 18 mph.
Sunday
Sunny, with a high near 58. Northwest wind 7 to 11 mph.
Sunday Night
Clear, with a low around 37. Northwest wind around 6 mph becoming calm in the evening.
Monday
Sunny, with a high near 64. Northwest wind 3 to 8 mph.
Monday Night
Partly cloudy, with a low around 40. North northwest wind 3 to 5 mph.
Tuesday
Mostly sunny, with a high near 59. East northeast wind 6 to 9 mph.
Tuesday Night
Partly cloudy, with a low around 38. East wind around 7 mph.
Wednesday
Mostly sunny, with a high near 67. South wind 7 to 11 mph, with gusts as high as 18 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:
2:56 am CDT Apr 2, 2026
Forecast Valid:
6am CDT Apr 2, 2026-6pm CDT Apr 8, 2026
 
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