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.

Overcast with Haze

N/A

Humidity NA
Wind Speed S 8 mph
Barometer 29.99 in
Dewpoint N/A
Visibility 6.00 mi
Last update 7 Dec 12:56 am CST
Extended Forecast for

Belle Rive IL

  • Overnight

    Overnight: Patchy fog between 3am and 4am. Otherwise, mostly cloudy, with a low around 33. Light south southeast wind.

    Low: 33 °F

    Patchy Fog

  • Sunday

    Sunday: A slight chance of showers or drizzle before 8am, then a slight chance of drizzle between 8am and 5pm. Mostly cloudy, with a high near 45. Light and variable wind becoming north 6 to 11 mph in the morning. Chance of precipitation is 20%.

    High: 45 °F

    Slight Chance
    Showers

  • Sunday Night

    Sunday Night: Cloudy, with a low around 24. North wind 7 to 10 mph, with gusts as high as 18 mph.

    Low: 24 °F

    Cloudy

  • Monday

    Monday: Mostly cloudy, then gradually becoming sunny, with a high near 37. North wind around 6 mph becoming calm in the afternoon.

    High: 37 °F

    Decreasing
    Clouds

  • Monday Night

    Monday Night: Partly cloudy, with a low around 24. Light south southeast wind becoming south southwest 6 to 11 mph after midnight. Winds could gust as high as 18 mph.

    Low: 24 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 48. South southwest wind 13 to 15 mph, with gusts as high as 23 mph.

    High: 48 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 40. Southwest wind 14 to 18 mph, with gusts as high as 29 mph.

    Low: 40 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 50. Southwest wind 8 to 18 mph becoming northwest in the afternoon. Winds could gust as high as 26 mph.

    High: 50 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: A slight chance of rain showers before midnight, then a slight chance of rain and snow showers. Mostly cloudy, with a low around 27. Northwest wind around 6 mph becoming light and variable.

    Low: 27 °F

    Slight Chance
    Showers then
    Slight Chance
    Rain/Snow

Detailed Forecast

Overnight
Patchy fog between 3am and 4am. Otherwise, mostly cloudy, with a low around 33. Light south southeast wind.
Sunday
A slight chance of showers or drizzle before 8am, then a slight chance of drizzle between 8am and 5pm. Mostly cloudy, with a high near 45. Light and variable wind becoming north 6 to 11 mph in the morning. Chance of precipitation is 20%.
Sunday Night
Cloudy, with a low around 24. North wind 7 to 10 mph, with gusts as high as 18 mph.
Monday
Mostly cloudy, then gradually becoming sunny, with a high near 37. North wind around 6 mph becoming calm in the afternoon.
Monday Night
Partly cloudy, with a low around 24. Light south southeast wind becoming south southwest 6 to 11 mph after midnight. Winds could gust as high as 18 mph.
Tuesday
Mostly sunny, with a high near 48. South southwest wind 13 to 15 mph, with gusts as high as 23 mph.
Tuesday Night
Mostly cloudy, with a low around 40. Southwest wind 14 to 18 mph, with gusts as high as 29 mph.
Wednesday
Partly sunny, with a high near 50. Southwest wind 8 to 18 mph becoming northwest in the afternoon. Winds could gust as high as 26 mph.
Wednesday Night
A slight chance of rain showers before midnight, then a slight chance of rain and snow showers. Mostly cloudy, with a low around 27. Northwest wind around 6 mph becoming light and variable.
Thursday
A chance of rain and snow showers. Mostly cloudy, with a high near 38. East wind 6 to 8 mph becoming north in the afternoon.
Thursday Night
A slight chance of showers. Mostly cloudy, with a low around 18. North northwest wind 6 to 9 mph.
Friday
Partly sunny, with a high near 28. Northwest wind 10 to 13 mph, with gusts as high as 18 mph.
Friday Night
Mostly cloudy, with a low around 7. Northwest wind 8 to 10 mph.
Saturday
Partly sunny, with a high near 23. West northwest wind 6 to 10 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
Belle Rive IL
 38.24°N 88.75°W
Last Update:
1:16 am CST Dec 7, 2025
Forecast Valid:
2am CST Dec 7, 2025-6pm CST Dec 13, 2025
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation