National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Mount Vernon Airport (KMVN)

Lat: 38.33°NLon: 88.85°WElev: 466ft.

Fair

74°F

23°C

Humidity 67%
Wind Speed NE 3 mph
Barometer 30.05 in (1017.5 mb)
Dewpoint 62°F (17°C)
Visibility 10.00 mi
Last update 19 Jun 8:56 am CDT
Extended Forecast for

3 Miles WSW Belle Rive IL

  • Juneteenth

    Juneteenth: Sunny, with a high near 84. Light north northwest wind.

    High: 84 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 64. Calm wind.

    Low: 64 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 87. Light southwest wind.

    High: 87 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 66. Calm wind.

    Low: 66 °F

    Mostly Clear

  • Sunday

    Sunday: Showers likely, then showers and possibly a thunderstorm after 10am. High near 85. South wind 5 to 10 mph increasing to 12 to 17 mph in the afternoon. Winds could gust as high as 24 mph. Chance of precipitation is 90%.

    High: 85 °F

    Showers

  • Sunday Night

    Sunday Night: Showers and possibly a thunderstorm. Low around 68. Southwest wind 13 to 16 mph, with gusts as high as 22 mph. Chance of precipitation is 90%.

    Low: 68 °F

    T-storms then
    Showers

  • Monday

    Monday: A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 80. West northwest wind 11 to 13 mph, with gusts as high as 18 mph.

    High: 80 °F

    Chance
    T-storms

  • Monday Night

    Monday Night: Partly cloudy, with a low around 61. North wind 3 to 8 mph.

    Low: 61 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 81. North wind around 5 mph becoming calm in the morning.

    High: 81 °F

    Mostly Sunny

Detailed Forecast

Juneteenth
Sunny, with a high near 84. Light north northwest wind.
Tonight
Partly cloudy, with a low around 64. Calm wind.
Saturday
Sunny, with a high near 87. Light southwest wind.
Saturday Night
Mostly clear, with a low around 66. Calm wind.
Sunday
Showers likely, then showers and possibly a thunderstorm after 10am. High near 85. South wind 5 to 10 mph increasing to 12 to 17 mph in the afternoon. Winds could gust as high as 24 mph. Chance of precipitation is 90%.
Sunday Night
Showers and possibly a thunderstorm. Low around 68. Southwest wind 13 to 16 mph, with gusts as high as 22 mph. Chance of precipitation is 90%.
Monday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 80. West northwest wind 11 to 13 mph, with gusts as high as 18 mph.
Monday Night
Partly cloudy, with a low around 61. North wind 3 to 8 mph.
Tuesday
Mostly sunny, with a high near 81. North wind around 5 mph becoming calm in the morning.
Tuesday Night
Mostly clear, with a low around 62. Calm wind.
Wednesday
Sunny, with a high near 83. Calm wind becoming northwest around 5 mph in the afternoon.
Wednesday Night
Mostly clear, with a low around 63. Calm wind.
Thursday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 84. Calm wind becoming south around 5 mph in the afternoon.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WSW Belle Rive IL
 38.22°N 88.78°W
Last Update:
9:11 am CDT Jun 19, 2026
Forecast Valid:
9am CDT Jun 19, 2026-6pm CDT Jun 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