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

N/A

Humidity NA
Wind Speed Calm
Barometer 30.29 in
Dewpoint N/A
Visibility 10.00 mi
Last update 8 Dec 4:56 pm CST
Extended Forecast for

Belle Rive IL

  • Tonight

    Tonight: Increasing clouds, with a low around 25. Light and variable wind becoming south southwest 5 to 10 mph after midnight. Winds could gust as high as 22 mph.

    Low: 25 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Mostly cloudy, then gradually becoming sunny, with a high near 48. Southwest wind 11 to 15 mph, with gusts as high as 25 mph.

    High: 48 °F

    Decreasing
    Clouds

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a temperature rising to around 45 by 4am. Southwest wind 14 to 17 mph, with gusts as high as 28 mph.

    Low: 42 °F⇑

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 49. Breezy, with a west southwest wind 13 to 22 mph becoming northwest in the afternoon. Winds could gust as high as 29 mph.

    High: 49 °F

    Mostly Cloudy
    and Breezy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 26. Northwest wind 5 to 10 mph becoming light west northwest after midnight. Winds could gust as high as 18 mph.

    Low: 26 °F

    Mostly Cloudy

  • Thursday

    Thursday: A 20 percent chance of snow showers before noon. Mostly cloudy, with a high near 38. Light and variable wind becoming west 5 to 7 mph in the morning.

    High: 38 °F

    Slight Chance
    Snow Showers
    then Mostly
    Cloudy

  • Thursday Night

    Thursday Night: A 20 percent chance of snow showers before midnight. Mostly cloudy, with a low around 27. East southeast wind 5 to 8 mph becoming north northeast in the evening.

    Low: 27 °F

    Slight Chance
    Snow Showers
    then Mostly
    Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 39. East northeast wind 8 to 13 mph becoming west northwest in the afternoon.

    High: 39 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 16. North northwest wind 8 to 10 mph.

    Low: 16 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Increasing clouds, with a low around 25. Light and variable wind becoming south southwest 5 to 10 mph after midnight. Winds could gust as high as 22 mph.
Tuesday
Mostly cloudy, then gradually becoming sunny, with a high near 48. Southwest wind 11 to 15 mph, with gusts as high as 25 mph.
Tuesday Night
Mostly cloudy, with a temperature rising to around 45 by 4am. Southwest wind 14 to 17 mph, with gusts as high as 28 mph.
Wednesday
Mostly cloudy, with a high near 49. Breezy, with a west southwest wind 13 to 22 mph becoming northwest in the afternoon. Winds could gust as high as 29 mph.
Wednesday Night
Mostly cloudy, with a low around 26. Northwest wind 5 to 10 mph becoming light west northwest after midnight. Winds could gust as high as 18 mph.
Thursday
A 20 percent chance of snow showers before noon. Mostly cloudy, with a high near 38. Light and variable wind becoming west 5 to 7 mph in the morning.
Thursday Night
A 20 percent chance of snow showers before midnight. Mostly cloudy, with a low around 27. East southeast wind 5 to 8 mph becoming north northeast in the evening.
Friday
Mostly cloudy, with a high near 39. East northeast wind 8 to 13 mph becoming west northwest in the afternoon.
Friday Night
Mostly cloudy, with a low around 16. North northwest wind 8 to 10 mph.
Saturday
Partly sunny, with a high near 27. North wind 5 to 8 mph.
Saturday Night
Partly cloudy, with a low around 14. Calm wind becoming north northeast around 5 mph after midnight.
Sunday
Mostly sunny, with a high near 31. Northeast wind 5 to 7 mph.
Sunday Night
Mostly cloudy, with a low around 19. Light and variable wind becoming east southeast around 6 mph after midnight.
Monday
A slight chance of showers. Mostly cloudy, with a high near 39. Southeast wind 6 to 9 mph becoming southwest in the afternoon.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Belle Rive IL
 38.22°N 88.72°W
Last Update:
3:16 pm CST Dec 8, 2025
Forecast Valid:
5pm CST Dec 8, 2025-6pm CST Dec 15, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation