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Hazardous Weather Conditions

Current conditions at

Mount Vernon Airport (KMVN)

Lat: 38.33°NLon: 88.85°WElev: 466ft.

Overcast

39°F

4°C

Humidity 89%
Wind Speed NE 8 mph
Barometer 30.20 in (1023.5 mb)
Dewpoint 36°F (2°C)
Visibility 8.00 mi
Wind Chill33°F (1°C)
Last update 2 Mar 1:56 pm CST
Extended Forecast for

9 Miles WSW Johnsonville IL

  • This Afternoon

    This Afternoon: Cloudy, with a high near 40. East northeast wind 6 to 9 mph.

    High: 40 °F

    Cloudy

  • Tonight

    Tonight: Showers, mainly after 3am. Low around 38. East northeast wind around 6 mph becoming calm in the evening. Chance of precipitation is 80%.

    Low: 38 °F

    Cloudy then
    Showers

  • Tuesday

    Tuesday: Showers, mainly before 11am. High near 59. Light and variable wind becoming south southeast around 6 mph in the morning. Chance of precipitation is 90%.

    High: 59 °F

    Showers then
    Showers
    Likely

  • Tuesday Night

    Tuesday Night: Showers likely, then showers and possibly a thunderstorm after 9pm. Low around 52. Calm wind becoming east southeast around 5 mph after midnight. Chance of precipitation is 80%.

    Low: 52 °F

    Showers

  • Wednesday

    Wednesday: Showers and possibly a thunderstorm. High near 68. Southeast wind 5 to 8 mph becoming south southwest in the morning. Chance of precipitation is 80%.

    High: 68 °F

    Showers

  • Wednesday Night

    Wednesday Night: Showers and possibly a thunderstorm. Low around 57. South wind 6 to 8 mph. Chance of precipitation is 80%.

    Low: 57 °F

    Showers

  • Thursday

    Thursday: Showers and possibly a thunderstorm. High near 70. Southwest wind 8 to 11 mph, with gusts as high as 18 mph. Chance of precipitation is 80%.

    High: 70 °F

    Showers

  • Thursday Night

    Thursday Night: A chance of showers, with thunderstorms also possible after midnight. Mostly cloudy, with a low around 56. South wind around 6 mph.

    Low: 56 °F

    Chance
    Showers

  • Friday

    Friday: A chance of showers and thunderstorms before noon, then a slight chance of showers. Partly sunny, with a high near 77. South wind 7 to 15 mph, with gusts as high as 22 mph.

    High: 77 °F

    Chance
    T-storms then
    Slight Chance
    Showers

Detailed Forecast

This Afternoon
Cloudy, with a high near 40. East northeast wind 6 to 9 mph.
Tonight
Showers, mainly after 3am. Low around 38. East northeast wind around 6 mph becoming calm in the evening. Chance of precipitation is 80%.
Tuesday
Showers, mainly before 11am. High near 59. Light and variable wind becoming south southeast around 6 mph in the morning. Chance of precipitation is 90%.
Tuesday Night
Showers likely, then showers and possibly a thunderstorm after 9pm. Low around 52. Calm wind becoming east southeast around 5 mph after midnight. Chance of precipitation is 80%.
Wednesday
Showers and possibly a thunderstorm. High near 68. Southeast wind 5 to 8 mph becoming south southwest in the morning. Chance of precipitation is 80%.
Wednesday Night
Showers and possibly a thunderstorm. Low around 57. South wind 6 to 8 mph. Chance of precipitation is 80%.
Thursday
Showers and possibly a thunderstorm. High near 70. Southwest wind 8 to 11 mph, with gusts as high as 18 mph. Chance of precipitation is 80%.
Thursday Night
A chance of showers, with thunderstorms also possible after midnight. Mostly cloudy, with a low around 56. South wind around 6 mph.
Friday
A chance of showers and thunderstorms before noon, then a slight chance of showers. Partly sunny, with a high near 77. South wind 7 to 15 mph, with gusts as high as 22 mph.
Friday Night
A chance of showers, mainly after midnight. Partly cloudy, with a low around 61. South wind around 10 mph, with gusts as high as 21 mph.
Saturday
Showers and possibly a thunderstorm. Cloudy, with a high near 70. Southwest wind 7 to 11 mph, with gusts as high as 21 mph.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 50. West southwest wind 3 to 6 mph.
Sunday
A chance of showers. Mostly cloudy, with a high near 64. Southwest wind 3 to 8 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
9 Miles WSW Johnsonville IL
 38.48°N 88.68°W
Last Update:
1:16 pm CST Mar 2, 2026
Forecast Valid:
1pm CST Mar 2, 2026-6pm CDT Mar 8, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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