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Hazardous Weather Conditions

Current conditions at

Mount Vernon Airport (KMVN)

Lat: 38.33°NLon: 88.85°WElev: 466ft.

Fair

56°F

13°C

Humidity 55%
Wind Speed SE 7 mph
Barometer 29.79 in (1009.1 mb)
Dewpoint 40°F (4°C)
Visibility 10.00 mi
Last update 14 Mar 11:56 pm CDT
Extended Forecast for

4 Miles SW Mount Vernon IL

Wind Advisory March 15, 10:00am until March 16, 07:00am
Click here for hazard details and duration
Wind Advisory

  • Overnight

    Overnight: Increasing clouds, with a low around 53. East southeast wind 7 to 11 mph becoming south. Winds could gust as high as 21 mph.

    Low: 53 °F

    Increasing
    Clouds

  • Sunday

    Sunday: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 3pm. High near 69. Breezy, with a south wind 18 to 26 mph, with gusts as high as 40 mph. Chance of precipitation is 80%.

    High: 69 °F

    Breezy.
    Slight Chance
    Showers then
    Showers

  • Sunday Night

    Sunday Night: Rain showers before 1am, then a slight chance of snow showers between 1am and 2am. Some thunder is also possible. Low around 24. Breezy, with a west northwest wind 23 to 26 mph, with gusts as high as 41 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.

    Low: 24 °F

    Breezy.
    Showers then
    Slight Chance
    Snow Showers

  • Monday

    Monday: Mostly cloudy, with a high near 32. Breezy, with a west northwest wind around 23 mph, with gusts as high as 34 mph.

    High: 32 °F

    Mostly Cloudy
    and Breezy

  • Monday Night

    Monday Night: Partly cloudy, with a low around 14. West northwest wind 10 to 18 mph, with gusts as high as 26 mph.

    Low: 14 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 37. Northwest wind around 7 mph.

    High: 37 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A 20 percent chance of snow showers after 1am. Mostly cloudy, with a low around 28. Light south wind increasing to 8 to 13 mph in the evening. Winds could gust as high as 22 mph.

    Low: 28 °F

    Mostly Cloudy
    then Slight
    Chance Snow
    Showers

  • Wednesday

    Wednesday: Partly sunny, with a high near 59. South wind 11 to 15 mph, with gusts as high as 24 mph.

    High: 59 °F

    Partly 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

Overnight
Increasing clouds, with a low around 53. East southeast wind 7 to 11 mph becoming south. Winds could gust as high as 21 mph.
Sunday
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 3pm. High near 69. Breezy, with a south wind 18 to 26 mph, with gusts as high as 40 mph. Chance of precipitation is 80%.
Sunday Night
Rain showers before 1am, then a slight chance of snow showers between 1am and 2am. Some thunder is also possible. Low around 24. Breezy, with a west northwest wind 23 to 26 mph, with gusts as high as 41 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.
Monday
Mostly cloudy, with a high near 32. Breezy, with a west northwest wind around 23 mph, with gusts as high as 34 mph.
Monday Night
Partly cloudy, with a low around 14. West northwest wind 10 to 18 mph, with gusts as high as 26 mph.
Tuesday
Sunny, with a high near 37. Northwest wind around 7 mph.
Tuesday Night
A 20 percent chance of snow showers after 1am. Mostly cloudy, with a low around 28. Light south wind increasing to 8 to 13 mph in the evening. Winds could gust as high as 22 mph.
Wednesday
Partly sunny, with a high near 59. South wind 11 to 15 mph, with gusts as high as 24 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 in the afternoon.
Thursday Night
Partly cloudy, with a low around 44. Light and variable wind.
Friday
Mostly sunny, with a high near 73. Light and variable wind becoming southwest 5 to 8 mph in the morning.
Friday Night
Mostly cloudy, with a low around 48. Southwest wind 6 to 8 mph becoming northwest after midnight.
Saturday
Mostly sunny, with a high near 67. Northwest wind 8 to 11 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SW Mount Vernon IL
 38.27°N 88.95°W
Last Update:
11:36 pm CDT Mar 14, 2026
Forecast Valid:
12am 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