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

73°F

23°C

Humidity 41%
Wind Speed SW 8 mph
Barometer 30.00 in (1016.0 mb)
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Last update 7 Oct 9:56 am CDT
Extended Forecast for

Belle Rive IL

  • Today

    Today: Sunny, with a high near 87. West southwest wind 6 to 10 mph.

    High: 87 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 54. Southwest wind around 5 mph becoming calm in the evening.

    Low: 54 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 84. Light and variable wind.

    High: 84 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 52. Calm wind.

    Low: 52 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 86. Calm wind becoming south southeast 5 to 8 mph in the morning.

    High: 86 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 57. South southeast wind around 5 mph becoming calm in the evening.

    Low: 57 °F

    Mostly Clear

  • Saturday

    Saturday: A 20 percent chance of showers after 1pm. Mostly sunny, with a high near 84. Light south wind becoming south southeast 6 to 11 mph in the morning.

    High: 84 °F

    Sunny then
    Slight Chance
    Showers

  • Saturday Night

    Saturday Night: A chance of showers, then showers likely and possibly a thunderstorm after 1am. Partly cloudy, with a low around 57. East southeast wind 6 to 8 mph.

    Low: 57 °F

    Showers
    Likely

  • Sunday

    Sunday: A chance of showers. Partly sunny, with a high near 78. East northeast wind 10 to 14 mph becoming northwest in the afternoon. Winds could gust as high as 20 mph.

    High: 78 °F

    Chance
    Showers

Detailed Forecast

Today
Sunny, with a high near 87. West southwest wind 6 to 10 mph.
Tonight
Clear, with a low around 54. Southwest wind around 5 mph becoming calm in the evening.
Thursday
Sunny, with a high near 84. Light and variable wind.
Thursday Night
Clear, with a low around 52. Calm wind.
Friday
Sunny, with a high near 86. Calm wind becoming south southeast 5 to 8 mph in the morning.
Friday Night
Mostly clear, with a low around 57. South southeast wind around 5 mph becoming calm in the evening.
Saturday
A 20 percent chance of showers after 1pm. Mostly sunny, with a high near 84. Light south wind becoming south southeast 6 to 11 mph in the morning.
Saturday Night
A chance of showers, then showers likely and possibly a thunderstorm after 1am. Partly cloudy, with a low around 57. East southeast wind 6 to 8 mph.
Sunday
A chance of showers. Partly sunny, with a high near 78. East northeast wind 10 to 14 mph becoming northwest in the afternoon. Winds could gust as high as 20 mph.
Sunday Night
Partly cloudy, with a low around 56. North wind around 6 mph becoming calm in the evening.
Columbus Day
Mostly sunny, with a high near 82. Calm wind becoming west southwest 5 to 8 mph in the afternoon.
Monday Night
Partly cloudy, with a low around 57. South wind around 5 mph.
Tuesday
A slight chance of showers. Mostly sunny, with a high near 82. Southwest wind 5 to 13 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Belle Rive IL
 38.24°N 88.75°W
Last Update:
9:16 am CDT Oct 7, 2026
Forecast Valid:
10am CDT Oct 7, 2026-6pm CDT Oct 13, 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