Current conditions at

Mount Vernon Airport (KMVN)

Lat: 38.33°NLon: 88.85°WElev: 466ft.

Fair

61°F

16°C

Humidity 72%
Wind Speed S 7 mph
Barometer 29.69 in (1005.6 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 18 Feb 6:56 pm CST
Extended Forecast for

9 Miles WSW Johnsonville IL

  • Tonight

    Tonight: Mostly cloudy, with a low around 52. South wind around 6 mph.

    Low: 52 °F

    Mostly Cloudy

  • Thursday

    Thursday: A chance of showers and thunderstorms before 1pm, then showers likely and possibly a thunderstorm between 1pm and 3pm, then a chance of showers and thunderstorms after 3pm.  Mostly cloudy, with a high near 67. South wind 6 to 16 mph, with gusts as high as 32 mph.  Chance of precipitation is 70%.

    High: 67 °F

    Chance
    Showers then
    Showers
    Likely

  • Thursday Night

    Thursday Night: A 20 percent chance of showers before 9pm.  Mostly clear, with a low around 40. West southwest wind 9 to 14 mph, with gusts as high as 24 mph.

    Low: 40 °F

    Slight Chance
    Showers then
    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 51. West wind 7 to 15 mph, with gusts as high as 25 mph.

    High: 51 °F

    Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 31. North northwest wind 3 to 5 mph.

    Low: 31 °F

    Mostly Cloudy

  • Saturday

    Saturday: A 20 percent chance of showers after noon.  Mostly sunny, with a high near 45. Northwest wind 5 to 8 mph.

    High: 45 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 24. Northwest wind 6 to 10 mph, with gusts as high as 21 mph.

    Low: 24 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 38. Northwest wind 10 to 15 mph, with gusts as high as 23 mph.

    High: 38 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 21. Northwest wind around 9 mph, with gusts as high as 18 mph.

    Low: 21 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 52. South wind around 6 mph.
Thursday
A chance of showers and thunderstorms before 1pm, then showers likely and possibly a thunderstorm between 1pm and 3pm, then a chance of showers and thunderstorms after 3pm. Mostly cloudy, with a high near 67. South wind 6 to 16 mph, with gusts as high as 32 mph. Chance of precipitation is 70%.
Thursday Night
A 20 percent chance of showers before 9pm. Mostly clear, with a low around 40. West southwest wind 9 to 14 mph, with gusts as high as 24 mph.
Friday
Sunny, with a high near 51. West wind 7 to 15 mph, with gusts as high as 25 mph.
Friday Night
Mostly cloudy, with a low around 31. North northwest wind 3 to 5 mph.
Saturday
A 20 percent chance of showers after noon. Mostly sunny, with a high near 45. Northwest wind 5 to 8 mph.
Saturday Night
Mostly clear, with a low around 24. 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 15 mph, with gusts as high as 23 mph.
Sunday Night
Partly cloudy, with a low around 21. Northwest wind around 9 mph, with gusts as high as 18 mph.
Monday
Sunny, with a high near 37. North northwest wind 5 to 10 mph becoming light in the afternoon. Winds could gust as high as 18 mph.
Monday Night
Mostly clear, with a low around 20. Calm wind.
Tuesday
Mostly sunny, with a high near 46. Light south wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 18 mph.
Tuesday Night
Mostly cloudy, with a low around 35. South southwest wind 8 to 11 mph, with gusts as high as 24 mph.
Wednesday
A chance of showers. Partly sunny, with a high near 55. Southwest wind 9 to 15 mph, with gusts as high as 24 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
9 Miles WSW Johnsonville IL
 38.48°N 88.68°W
5:41 pm CST Feb 18, 2026
7pm CST Feb 18, 2026-6pm CST Feb 25, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database