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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 steady temperature around 55. South wind 3 to 6 mph.

    Low: 55 °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 steady temperature around 55. 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:
3:12 am CST Feb 19, 2026
Forecast Valid:
3am CST Feb 19, 2026-6pm CST Feb 25, 2026
 
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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