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Hazardous Weather Conditions

Current conditions at

Mount Vernon Airport (KMVN)

Lat: 38.33°NLon: 88.85°WElev: 466ft.

Overcast

57°F

14°C

Humidity 93%
Wind Speed S 8 mph
Barometer 29.63 in (1003.6 mb)
Dewpoint 55°F (13°C)
Visibility 9.00 mi
Last update 19 Feb 2:56 am CST
Extended Forecast for

Mount Vernon IL

  • Overnight

    Overnight: Mostly cloudy, with a low around 52. South wind 3 to 6 mph.

    Low: 52 °F

    Mostly Cloudy

  • Thursday

    Thursday: A chance of showers and thunderstorms before noon, then showers likely and possibly a thunderstorm between noon and 3pm, then a chance of showers and thunderstorms after 3pm. Mostly cloudy, with a high near 68. South wind 7 to 16 mph. Chance of precipitation is 70%.

    High: 68 °F

    Showers
    Likely

  • Thursday Night

    Thursday Night: A 20 percent chance of showers and thunderstorms before 9pm. Mostly clear, with a low around 38. West wind 9 to 15 mph, with gusts as high as 25 mph.

    Low: 38 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 50. West wind 5 to 15 mph, with gusts as high as 24 mph.

    High: 50 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 32. Light north wind.

    Low: 32 °F

    Partly Cloudy

  • Saturday

    Saturday: A 20 percent chance of showers after noon. Mostly sunny, with a high near 47. Light north wind becoming north northwest 5 to 9 mph in the morning.

    High: 47 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 25. Northwest wind 6 to 10 mph, with gusts as high as 21 mph.

    Low: 25 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 38. Northwest wind 10 to 17 mph, with gusts as high as 25 mph.

    High: 38 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 20. Northwest wind around 10 mph, with gusts as high as 20 mph.

    Low: 20 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly cloudy, with a low around 52. South wind 3 to 6 mph.
Thursday
A chance of showers and thunderstorms before noon, then showers likely and possibly a thunderstorm between noon and 3pm, then a chance of showers and thunderstorms after 3pm. Mostly cloudy, with a high near 68. South wind 7 to 16 mph. Chance of precipitation is 70%.
Thursday Night
A 20 percent chance of showers and thunderstorms before 9pm. Mostly clear, with a low around 38. West wind 9 to 15 mph, with gusts as high as 25 mph.
Friday
Sunny, with a high near 50. West wind 5 to 15 mph, with gusts as high as 24 mph.
Friday Night
Partly cloudy, with a low around 32. Light north wind.
Saturday
A 20 percent chance of showers after noon. Mostly sunny, with a high near 47. Light north wind becoming north northwest 5 to 9 mph in the morning.
Saturday Night
Mostly clear, with a low around 25. Northwest wind 6 to 10 mph, with gusts as high as 21 mph.
Sunday
Mostly sunny, with a high near 38. Northwest wind 10 to 17 mph, with gusts as high as 25 mph.
Sunday Night
Mostly clear, with a low around 20. Northwest wind around 10 mph, with gusts as high as 20 mph.
Monday
Sunny, with a high near 36. North northwest wind 6 to 11 mph, with gusts as high as 20 mph.
Monday Night
Mostly clear, with a low around 19. Light and variable wind.
Tuesday
Mostly sunny, with a high near 46. Light south southwest wind increasing to 8 to 13 mph in the morning. Winds could gust as high as 20 mph.
Tuesday Night
Mostly cloudy, with a low around 36. South southwest wind 10 to 14 mph, with gusts as high as 25 mph.
Wednesday
A slight chance of showers. Mostly cloudy, with a high near 57. Southwest wind 11 to 16 mph, with gusts as high as 25 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:
2:12 am CST Feb 19, 2026
Forecast Valid:
3am CST Feb 19, 2026-6pm CST Feb 25, 2026
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation