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Hazardous Weather Conditions

Current conditions at

Mount Vernon Airport (KMVN)

Lat: 38.33°NLon: 88.85°WElev: 466ft.

Overcast and Windy

66°F

19°C

Humidity 63%
Wind Speed S 26 G 38 mph
Barometer 29.55 in (1000.8 mb)
Dewpoint 53°F (12°C)
Visibility 10.00 mi
Last update 15 Mar 12:56 pm CDT
Extended Forecast for

Mount Vernon IL

High Wind Warning March 15, 01:44pm until March 15, 09:00pm
Click here for hazard details and duration
High Wind Warning
  •  
    High Wind Warning March 15, 01:44pm until March 15, 09:00pm

    NOW until 9:00pm Sun

    High Wind Warning

  • This Afternoon

    High: 69 °F

    Heavy Rain
    and Breezy

  • Tonight

    Tonight: Rain showers before 11pm, then a slight chance of snow showers after 5am. The rain could be heavy at times. Some thunder is also possible. Low around 25. Breezy, with a west wind 22 to 25 mph, with gusts as high as 39 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.

    Low: 25 °F

    Breezy. Heavy
    Rain then
    Slight Chance
    Snow Showers

  • Monday

    Monday: A slight chance of snow showers between 9am and 1pm. Mostly cloudy, with a high near 32. Breezy, with a west northwest wind around 22 mph, with gusts as high as 39 mph. Chance of precipitation is 20%.

    High: 32 °F

    Slight Chance
    Snow Showers
    and Breezy

  • Monday Night

    Monday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 15. West northwest wind 11 to 18 mph, with gusts as high as 28 mph.

    Low: 15 °F

    Decreasing
    Clouds

  • Tuesday

    Tuesday: Sunny, with a high near 35. Northwest wind 6 to 9 mph.

    High: 35 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A 30 percent chance of snow showers after 1am. Mostly cloudy, with a low around 28. Light south wind increasing to 6 to 11 mph in the evening. Winds could gust as high as 21 mph.

    Low: 28 °F

    Mostly Cloudy
    then Chance
    Snow Showers

  • Wednesday

    Wednesday: Mostly sunny, with a high near 58. Southwest wind 11 to 14 mph, with gusts as high as 23 mph.

    High: 58 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 41. South southwest wind around 6 mph.

    Low: 41 °F

    Partly Cloudy

Detailed Forecast

This Afternoon
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 5pm. Some of the storms could produce heavy rainfall. Mostly cloudy, with a high near 69. Breezy, with a south wind 22 to 25 mph, with gusts as high as 46 mph. Chance of precipitation is 60%.
Tonight
Rain showers before 11pm, then a slight chance of snow showers after 5am. The rain could be heavy at times. Some thunder is also possible. Low around 25. Breezy, with a west wind 22 to 25 mph, with gusts as high as 39 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.
Monday
A slight chance of snow showers between 9am and 1pm. Mostly cloudy, with a high near 32. Breezy, with a west northwest wind around 22 mph, with gusts as high as 39 mph. Chance of precipitation is 20%.
Monday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 15. West northwest wind 11 to 18 mph, with gusts as high as 28 mph.
Tuesday
Sunny, with a high near 35. Northwest wind 6 to 9 mph.
Tuesday Night
A 30 percent chance of snow showers after 1am. Mostly cloudy, with a low around 28. Light south wind increasing to 6 to 11 mph in the evening. Winds could gust as high as 21 mph.
Wednesday
Mostly sunny, with a high near 58. Southwest wind 11 to 14 mph, with gusts as high as 23 mph.
Wednesday Night
Partly cloudy, with a low around 41. South southwest wind around 6 mph.
Thursday
Sunny, with a high near 68. South southwest wind 5 to 7 mph becoming west northwest in the afternoon.
Thursday Night
Mostly clear, with a low around 43. Light and variable wind.
Friday
Mostly sunny, with a high near 72. Light and variable wind becoming southwest 5 to 8 mph in the morning.
Friday Night
Mostly cloudy, with a low around 50. South southwest wind around 7 mph.
Saturday
Sunny, with a high near 75. West wind 7 to 10 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:
1:26 pm CDT Mar 15, 2026
Forecast Valid:
1pm CDT Mar 15, 2026-6pm CDT Mar 21, 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