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Hazardous Weather Conditions

Current conditions at

Mount Vernon Airport (KMVN)

Lat: 38.33°NLon: 88.85°WElev: 466ft.

67°F

19°C

Humidity 93%
Wind Speed Vrbl 7 mph
Barometer 30.08 in (1018.8 mb)
Dewpoint 65°F (18°C)
Visibility 10.00 mi
Last update 18 May 5:56 pm CDT
Extended Forecast for

5 Miles SW Belle Rive IL

  • Tonight

    Tonight: A chance of showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and 10pm. Mostly cloudy, with a steady temperature around 72. Southwest wind 11 to 13 mph becoming southeast in the evening. Winds could gust as high as 22 mph. Chance of precipitation is 50%.

    Low: 72 °F

    Chance
    T-storms then
    Partly Cloudy

  • Tuesday

    Tuesday: Showers and thunderstorms, mainly before 5pm, then showers and possibly a thunderstorm after 5pm. High near 86. Southwest wind 13 to 18 mph, with gusts as high as 25 mph. Chance of precipitation is 80%.

    High: 86 °F

    Chance
    Showers then
    T-storms

  • Tuesday Night

    Tuesday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 61. West wind 5 to 8 mph becoming light and variable. Chance of precipitation is 70%.

    Low: 61 °F

    Showers
    Likely

  • Wednesday

    Wednesday: A 50 percent chance of showers, mainly before 1pm. Mostly cloudy, with a high near 72. North wind around 10 mph.

    High: 72 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 54. Northeast wind around 9 mph.

    Low: 54 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 74. Northeast wind 8 to 10 mph.

    High: 74 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: A slight chance of showers, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 58. East northeast wind 7 to 10 mph. Chance of precipitation is 60%.

    Low: 58 °F

    Slight Chance
    Showers then
    Showers
    Likely

  • Friday

    Friday: Showers and possibly a thunderstorm. Mostly cloudy, with a high near 76. East wind around 7 mph becoming south southwest in the afternoon.

    High: 76 °F

    Showers

  • Friday Night

    Friday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 63. South southwest wind 5 to 7 mph.

    Low: 63 °F

    Showers
    Likely

Detailed Forecast

Tonight
A chance of showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and 10pm. Mostly cloudy, with a steady temperature around 72. Southwest wind 11 to 13 mph becoming southeast in the evening. Winds could gust as high as 22 mph. Chance of precipitation is 50%.
Tuesday
Showers and thunderstorms, mainly before 5pm, then showers and possibly a thunderstorm after 5pm. High near 86. Southwest wind 13 to 18 mph, with gusts as high as 25 mph. Chance of precipitation is 80%.
Tuesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 61. West wind 5 to 8 mph becoming light and variable. Chance of precipitation is 70%.
Wednesday
A 50 percent chance of showers, mainly before 1pm. Mostly cloudy, with a high near 72. North wind around 10 mph.
Wednesday Night
Mostly cloudy, with a low around 54. Northeast wind around 9 mph.
Thursday
Partly sunny, with a high near 74. Northeast wind 8 to 10 mph.
Thursday Night
A slight chance of showers, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 58. East northeast wind 7 to 10 mph. Chance of precipitation is 60%.
Friday
Showers and possibly a thunderstorm. Mostly cloudy, with a high near 76. East wind around 7 mph becoming south southwest in the afternoon.
Friday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 63. South southwest wind 5 to 7 mph.
Saturday
A chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 81. West southwest wind around 6 mph.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 63. Light south wind.
Sunday
A chance of showers and thunderstorms. Partly sunny, with a high near 82. Calm wind becoming south southwest around 5 mph in the afternoon.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 65. Light south southeast wind.
Memorial Day
A chance of showers and thunderstorms. Partly sunny, with a high near 84. South southeast wind 3 to 7 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SW Belle Rive IL
 38.2°N 88.81°W
Last Update:
3:22 pm CDT May 18, 2026
Forecast Valid:
6pm CDT May 18, 2026-6pm CDT May 25, 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