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Hazardous Weather Conditions

Current conditions at

Mount Vernon Airport (KMVN)

Lat: 38.33°NLon: 88.85°WElev: 466ft.

Fair

63°F

17°C

Humidity 81%
Wind Speed W 10 mph
Barometer 29.93 in (1013.8 mb)
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 7 Mar 12:56 pm CST
Extended Forecast for

Mount Vernon IL

  • This Afternoon

    This Afternoon: A chance of showers and thunderstorms before 3pm, then a chance of showers between 3pm and 4pm. Mostly cloudy, with a high near 67. West northwest wind 11 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 50%.

    High: 67 °F

    Chance
    Showers

  • Tonight

    Tonight: Mostly cloudy, with a low around 38. West northwest wind 5 to 10 mph becoming light northwest after midnight. Winds could gust as high as 18 mph.

    Low: 38 °F

    Mostly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 64. Calm wind becoming southwest 5 to 7 mph in the morning.

    High: 64 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 44. South southwest wind around 6 mph.

    Low: 44 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 73. South southwest wind 6 to 14 mph, with gusts as high as 23 mph.

    High: 73 °F

    Sunny

  • Monday Night

    Monday Night: A 20 percent chance of showers after midnight. Mostly clear, with a low around 61. South southwest wind 8 to 11 mph, with gusts as high as 21 mph.

    Low: 61 °F

    Mostly Clear
    then Slight
    Chance
    Showers

  • Tuesday

    Tuesday: A 40 percent chance of showers and thunderstorms after noon. Mostly cloudy, with a high near 78. South southwest wind 8 to 15 mph, with gusts as high as 24 mph.

    High: 78 °F

    Mostly Cloudy
    then Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Showers and possibly a thunderstorm. Cloudy, with a low around 60. Breezy, with a south southwest wind 15 to 20 mph, with gusts as high as 29 mph.

    Low: 60 °F

    Showers and
    Breezy

  • Wednesday

    Wednesday: Showers and possibly a thunderstorm. Cloudy, with a high near 71. South southwest wind around 17 mph becoming northwest in the afternoon. Winds could gust as high as 28 mph.

    High: 71 °F

    Showers

Detailed Forecast

This Afternoon
A chance of showers and thunderstorms before 3pm, then a chance of showers between 3pm and 4pm. Mostly cloudy, with a high near 67. West northwest wind 11 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 50%.
Tonight
Mostly cloudy, with a low around 38. West northwest wind 5 to 10 mph becoming light northwest after midnight. Winds could gust as high as 18 mph.
Sunday
Sunny, with a high near 64. Calm wind becoming southwest 5 to 7 mph in the morning.
Sunday Night
Clear, with a low around 44. South southwest wind around 6 mph.
Monday
Sunny, with a high near 73. South southwest wind 6 to 14 mph, with gusts as high as 23 mph.
Monday Night
A 20 percent chance of showers after midnight. Mostly clear, with a low around 61. South southwest wind 8 to 11 mph, with gusts as high as 21 mph.
Tuesday
A 40 percent chance of showers and thunderstorms after noon. Mostly cloudy, with a high near 78. South southwest wind 8 to 15 mph, with gusts as high as 24 mph.
Tuesday Night
Showers and possibly a thunderstorm. Cloudy, with a low around 60. Breezy, with a south southwest wind 15 to 20 mph, with gusts as high as 29 mph.
Wednesday
Showers and possibly a thunderstorm. Cloudy, with a high near 71. South southwest wind around 17 mph becoming northwest in the afternoon. Winds could gust as high as 28 mph.
Wednesday Night
A chance of showers before midnight. Partly cloudy, with a low around 33. Northwest wind 13 to 16 mph, with gusts as high as 24 mph.
Thursday
Sunny, with a high near 53. West northwest wind 5 to 14 mph, with gusts as high as 21 mph.
Thursday Night
Mostly cloudy, with a low around 40. Light west southwest wind becoming south 8 to 13 mph in the evening. Winds could gust as high as 23 mph.
Friday
Partly sunny, with a high near 65. South southwest wind 13 to 18 mph, with gusts as high as 26 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
Mount Vernon IL
 38.31°N 88.91°W
Last Update:
12:51 pm CST Mar 7, 2026
Forecast Valid:
1pm CST Mar 7, 2026-6pm CDT Mar 13, 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