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.

Partly Cloudy

N/A

Humidity NA
Wind Speed SW 8 mph
Barometer 29.67 in
Dewpoint N/A
Visibility 10.00 mi
Last update 15 Nov 4:56 pm CST
Extended Forecast for

Belle Rive IL

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming clear, with a low around 43. West southwest wind 7 to 9 mph becoming north after midnight.

    Low: 43 °F

    Decreasing
    Clouds

  • Sunday

    Sunday: Sunny, with a high near 59. North wind 6 to 9 mph.

    High: 59 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 32. Calm wind.

    Low: 32 °F

    Clear

  • Monday

    Monday: A 20 percent chance of showers after noon. Increasing clouds, with a high near 60. Calm wind becoming southeast 5 to 8 mph in the morning.

    High: 60 °F

    Sunny then
    Slight Chance
    Showers

  • Monday Night

    Monday Night: Showers likely, then showers and possibly a thunderstorm after midnight. Low around 45. Southeast wind 6 to 9 mph. Chance of precipitation is 80%.

    Low: 45 °F

    Showers

  • Tuesday

    Tuesday: A chance of showers and thunderstorms. Partly sunny, with a high near 71. South southeast wind 8 to 11 mph. Chance of precipitation is 50%.

    High: 71 °F

    Chance
    T-storms then
    Slight Chance
    Showers

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers. Mostly cloudy, with a low around 48. Southeast wind 5 to 7 mph becoming north after midnight.

    Low: 48 °F

    Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers. Mostly cloudy, with a high near 66. Northeast wind 5 to 7 mph becoming south southwest in the morning.

    High: 66 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Showers likely, mainly after midnight. Mostly cloudy, with a low around 51. Calm wind becoming east southeast around 6 mph after midnight.

    Low: 51 °F

    Showers
    Likely

Detailed Forecast

Tonight
Mostly cloudy, then gradually becoming clear, with a low around 43. West southwest wind 7 to 9 mph becoming north after midnight.
Sunday
Sunny, with a high near 59. North wind 6 to 9 mph.
Sunday Night
Clear, with a low around 32. Calm wind.
Monday
A 20 percent chance of showers after noon. Increasing clouds, with a high near 60. Calm wind becoming southeast 5 to 8 mph in the morning.
Monday Night
Showers likely, then showers and possibly a thunderstorm after midnight. Low around 45. Southeast wind 6 to 9 mph. Chance of precipitation is 80%.
Tuesday
A chance of showers and thunderstorms. Partly sunny, with a high near 71. South southeast wind 8 to 11 mph. Chance of precipitation is 50%.
Tuesday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 48. Southeast wind 5 to 7 mph becoming north after midnight.
Wednesday
A chance of showers. Mostly cloudy, with a high near 66. Northeast wind 5 to 7 mph becoming south southwest in the morning.
Wednesday Night
Showers likely, mainly after midnight. Mostly cloudy, with a low around 51. Calm wind becoming east southeast around 6 mph after midnight.
Thursday
Showers, with thunderstorms also possible after noon. Cloudy, with a high near 67. South southeast wind 6 to 11 mph.
Thursday Night
Showers and possibly a thunderstorm. Mostly cloudy, with a low around 54. South southeast wind 9 to 11 mph, with gusts as high as 18 mph.
Friday
Showers likely. Partly sunny, with a high near 66. Southwest wind 11 to 15 mph, with gusts as high as 20 mph.
Friday Night
A chance of showers. Mostly cloudy, with a low around 43. West wind 7 to 10 mph.
Saturday
A slight chance of showers. Partly sunny, with a high near 57. West northwest wind 7 to 10 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Belle Rive IL
 38.24°N 88.75°W
Last Update:
3:21 pm CST Nov 15, 2025
Forecast Valid:
5pm CST Nov 15, 2025-6pm CST Nov 22, 2025
 
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