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

75°F

24°C

Humidity 52%
Wind Speed SW 5 mph
Barometer 29.91 in (1013.0 mb)
Dewpoint 56°F (13°C)
Visibility 10.00 mi
Last update 7 Oct 6:56 pm CDT
Extended Forecast for

Belle Rive IL

  • Tonight

    Tonight: Mostly clear, with a low around 56. Southwest wind around 5 mph becoming calm in the evening.

    Low: 56 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 85. Calm wind becoming north around 5 mph.

    High: 85 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 55. Calm wind.

    Low: 55 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 88. Calm wind becoming south southeast 5 to 8 mph in the morning.

    High: 88 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 60. Southeast wind 3 to 5 mph.

    Low: 60 °F

    Mostly Clear

  • Saturday

    Saturday: A 30 percent chance of showers after 1pm. Mostly sunny, with a high near 84. Light south southeast wind becoming southeast 6 to 11 mph in the morning.

    High: 84 °F

    Mostly Sunny
    then Chance
    Showers

  • Saturday Night

    Saturday Night: Showers and possibly a thunderstorm. Low around 57. East wind 8 to 11 mph, with gusts as high as 18 mph. Chance of precipitation is 80%.

    Low: 57 °F

    Showers

  • Sunday

    Sunday: A slight chance of showers before 1pm. Partly sunny, with a high near 76. East northeast wind 11 to 13 mph becoming northwest in the afternoon. Winds could gust as high as 20 mph.

    High: 76 °F

    Slight Chance
    Showers

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 57. Light and variable wind.

    Low: 57 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 56. Southwest wind around 5 mph becoming calm in the evening.
Thursday
Sunny, with a high near 85. Calm wind becoming north around 5 mph.
Thursday Night
Clear, with a low around 55. Calm wind.
Friday
Sunny, with a high near 88. Calm wind becoming south southeast 5 to 8 mph in the morning.
Friday Night
Mostly clear, with a low around 60. Southeast wind 3 to 5 mph.
Saturday
A 30 percent chance of showers after 1pm. Mostly sunny, with a high near 84. Light south southeast wind becoming southeast 6 to 11 mph in the morning.
Saturday Night
Showers and possibly a thunderstorm. Low around 57. East wind 8 to 11 mph, with gusts as high as 18 mph. Chance of precipitation is 80%.
Sunday
A slight chance of showers before 1pm. Partly sunny, with a high near 76. East northeast wind 11 to 13 mph becoming northwest in the afternoon. Winds could gust as high as 20 mph.
Sunday Night
Partly cloudy, with a low around 57. Light and variable wind.
Columbus Day
Mostly sunny, with a high near 86. Light southwest wind increasing to 6 to 11 mph in the afternoon.
Monday Night
Mostly clear, with a low around 57. South southwest wind 7 to 9 mph.
Tuesday
Sunny, with a high near 75. West wind 10 to 15 mph becoming north northwest in the afternoon. Winds could gust as high as 20 mph.
Tuesday Night
Mostly clear, with a low around 49. North northeast wind 6 to 10 mph.
Wednesday
A slight chance of showers. Sunny, with a high near 72. North northeast wind 5 to 9 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
Belle Rive IL
 38.22°N 88.75°W
Last Update:
1:50 pm CDT Oct 7, 2026
Forecast Valid:
7pm CDT Oct 7, 2026-6pm CDT Oct 14, 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