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

38°F

3°C

Humidity 100%
Wind Speed Calm
Barometer 30.26 in (1025.1 mb)
Dewpoint 38°F (3°C)
Visibility 10.00 mi
Last update 6 Nov 12:56 am CST
Extended Forecast for

Belle Rive IL

  • Overnight

    Overnight: Mostly clear, with a low around 37. Light northeast wind.

    Low: 37 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 65. Light and variable wind becoming southeast 6 to 11 mph in the morning.

    High: 65 °F

    Sunny

  • Thursday Night

    Thursday Night: Increasing clouds, with a low around 49. Southeast wind 6 to 13 mph becoming south southwest after midnight. Winds could gust as high as 23 mph.

    Low: 49 °F

    Increasing
    Clouds

  • Friday

    Friday: A chance of showers, with thunderstorms also possible after 3pm. Mostly cloudy, then gradually becoming sunny, with a high near 72. West wind 8 to 16 mph, with gusts as high as 23 mph. Chance of precipitation is 40%.

    High: 72 °F

    Chance
    Showers

  • Friday Night

    Friday Night: Mostly clear, with a low around 42. West wind around 6 mph becoming calm in the evening.

    Low: 42 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 66. Light and variable wind becoming west southwest 5 to 10 mph in the morning.

    High: 66 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A 30 percent chance of showers before midnight. Mostly cloudy, with a low around 35. South southwest wind 10 to 14 mph becoming northwest after midnight. Winds could gust as high as 20 mph.

    Low: 35 °F

    Chance
    Showers then
    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 44. Northwest wind 14 to 18 mph, with gusts as high as 23 mph.

    High: 44 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 22. Northwest wind 7 to 11 mph, with gusts as high as 20 mph.

    Low: 22 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly clear, with a low around 37. Light northeast wind.
Thursday
Sunny, with a high near 65. Light and variable wind becoming southeast 6 to 11 mph in the morning.
Thursday Night
Increasing clouds, with a low around 49. Southeast wind 6 to 13 mph becoming south southwest after midnight. Winds could gust as high as 23 mph.
Friday
A chance of showers, with thunderstorms also possible after 3pm. Mostly cloudy, then gradually becoming sunny, with a high near 72. West wind 8 to 16 mph, with gusts as high as 23 mph. Chance of precipitation is 40%.
Friday Night
Mostly clear, with a low around 42. West wind around 6 mph becoming calm in the evening.
Saturday
Mostly sunny, with a high near 66. Light and variable wind becoming west southwest 5 to 10 mph in the morning.
Saturday Night
A 30 percent chance of showers before midnight. Mostly cloudy, with a low around 35. South southwest wind 10 to 14 mph becoming northwest after midnight. Winds could gust as high as 20 mph.
Sunday
Mostly sunny, with a high near 44. Northwest wind 14 to 18 mph, with gusts as high as 23 mph.
Sunday Night
Mostly clear, with a low around 22. Northwest wind 7 to 11 mph, with gusts as high as 20 mph.
Monday
Sunny, with a high near 44. West northwest wind 8 to 14 mph, with gusts as high as 18 mph.
Monday Night
Mostly clear, with a low around 25. West wind 5 to 7 mph.
Veterans Day
Mostly sunny, with a high near 54. South southwest wind 8 to 15 mph, with gusts as high as 22 mph.
Tuesday Night
Partly cloudy, with a low around 39. Southwest wind 9 to 14 mph, with gusts as high as 21 mph.
Wednesday
Mostly sunny, with a high near 61. West wind 9 to 14 mph, with gusts as high as 18 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Belle Rive IL
 38.22°N 88.75°W
Last Update:
10:31 pm CST Nov 5, 2025
Forecast Valid:
1am CST Nov 6, 2025-6pm CST Nov 12, 2025
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation