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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 72%
Wind Speed SW 6 mph
Barometer 30.19 in (1022.5 mb)
Dewpoint 47°F (8°C)
Visibility 10.00 mi
Last update 10 Apr 3:56 am CDT
Extended Forecast for

Mount Vernon IL

  • Today

    Today: A chance of showers and thunderstorms before 3pm, then showers likely and possibly a thunderstorm between 3pm and 4pm, then a chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 75. South southwest wind 8 to 11 mph becoming northwest in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 60%.

    High: 75 °F

    Partly Sunny
    then Showers
    Likely

  • Tonight

    Tonight: A chance of showers, with thunderstorms also possible after 4am. Mostly cloudy, with a low around 51. Northeast wind 3 to 5 mph. Chance of precipitation is 30%.

    Low: 51 °F

    Chance
    Showers

  • Saturday

    Saturday: A chance of showers and thunderstorms before 7am, then a slight chance of showers between 7am and 4pm, then a slight chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 75. East northeast wind around 6 mph becoming southeast in the afternoon. Chance of precipitation is 30%.

    High: 75 °F

    Chance
    Showers then
    Slight Chance
    T-storms

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 60. Southeast wind around 6 mph.

    Low: 60 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 81. South southwest wind 7 to 17 mph, with gusts as high as 26 mph.

    High: 81 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 65. South southwest wind around 14 mph, with gusts as high as 24 mph.

    Low: 65 °F

    Chance
    Showers

  • Monday

    Monday: A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 82. South southwest wind 13 to 16 mph, with gusts as high as 25 mph. Chance of precipitation is 40%.

    High: 82 °F

    Chance
    Showers then
    Chance
    T-storms

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 68. South southwest wind 11 to 13 mph, with gusts as high as 22 mph.

    Low: 68 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 85. South southwest wind 10 to 17 mph, with gusts as high as 25 mph.

    High: 85 °F

    Chance
    T-storms

Detailed Forecast

Today
A chance of showers and thunderstorms before 3pm, then showers likely and possibly a thunderstorm between 3pm and 4pm, then a chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 75. South southwest wind 8 to 11 mph becoming northwest in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 60%.
Tonight
A chance of showers, with thunderstorms also possible after 4am. Mostly cloudy, with a low around 51. Northeast wind 3 to 5 mph. Chance of precipitation is 30%.
Saturday
A chance of showers and thunderstorms before 7am, then a slight chance of showers between 7am and 4pm, then a slight chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 75. East northeast wind around 6 mph becoming southeast in the afternoon. Chance of precipitation is 30%.
Saturday Night
Partly cloudy, with a low around 60. Southeast wind around 6 mph.
Sunday
Partly sunny, with a high near 81. South southwest wind 7 to 17 mph, with gusts as high as 26 mph.
Sunday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 65. South southwest wind around 14 mph, with gusts as high as 24 mph.
Monday
A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 82. South southwest wind 13 to 16 mph, with gusts as high as 25 mph. Chance of precipitation is 40%.
Monday Night
Mostly cloudy, with a low around 68. South southwest wind 11 to 13 mph, with gusts as high as 22 mph.
Tuesday
A chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 85. South southwest wind 10 to 17 mph, with gusts as high as 25 mph.
Tuesday Night
A chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 68. South southwest wind around 13 mph, with gusts as high as 22 mph.
Wednesday
A chance of showers and thunderstorms. Partly sunny, with a high near 84. Southwest wind 11 to 15 mph, with gusts as high as 23 mph.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 61. Southwest wind 6 to 9 mph.
Thursday
A chance of showers and thunderstorms. Partly sunny, with a high near 80. South wind 6 to 11 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:
2:16 am CDT Apr 10, 2026
Forecast Valid:
4am CDT Apr 10, 2026-6pm CDT Apr 16, 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