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

69°F

21°C

Humidity 55%
Wind Speed N 5 mph
Barometer 30.17 in (1021.9 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 31 Aug 7:56 pm CDT
Extended Forecast for

Belle Rive IL

  • Tonight

    Tonight: Partly cloudy, with a low around 55. Light northeast wind.

    Low: 55 °F

    Partly Cloudy

  • Labor Day

    Labor Day: Mostly sunny, with a high near 84. Calm wind becoming east northeast around 6 mph in the morning.

    High: 84 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 59. Northeast wind around 5 mph becoming calm in the evening.

    Low: 59 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A slight chance of showers between 1pm and 4pm, then a slight chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 81. Calm wind becoming east northeast around 5 mph in the afternoon. Chance of precipitation is 20%.

    High: 81 °F

    Partly Sunny
    then Slight
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A slight chance of thunderstorms before 7pm. Partly cloudy, with a low around 57. Calm wind. Chance of precipitation is 10%.

    Low: 57 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 85. Calm wind becoming west southwest around 6 mph in the afternoon.

    High: 85 °F

    Sunny

  • Wednesday Night

    Wednesday Night: A slight chance of showers, then a chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 55. West wind around 6 mph. Chance of precipitation is 40%.

    Low: 55 °F

    Chance
    Showers

  • Thursday

    Thursday: A slight chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 76. Northwest wind 6 to 10 mph.

    High: 76 °F

    Slight Chance
    T-storms

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 49. Northwest wind around 6 mph becoming calm in the evening.

    Low: 49 °F

    Mostly Clear

Detailed Forecast

Tonight
Partly cloudy, with a low around 55. Light northeast wind.
Labor Day
Mostly sunny, with a high near 84. Calm wind becoming east northeast around 6 mph in the morning.
Monday Night
Mostly cloudy, with a low around 59. Northeast wind around 5 mph becoming calm in the evening.
Tuesday
A slight chance of showers between 1pm and 4pm, then a slight chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 81. Calm wind becoming east northeast around 5 mph in the afternoon. Chance of precipitation is 20%.
Tuesday Night
A slight chance of thunderstorms before 7pm. Partly cloudy, with a low around 57. Calm wind. Chance of precipitation is 10%.
Wednesday
Sunny, with a high near 85. Calm wind becoming west southwest around 6 mph in the afternoon.
Wednesday Night
A slight chance of showers, then a chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 55. West wind around 6 mph. Chance of precipitation is 40%.
Thursday
A slight chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 76. Northwest wind 6 to 10 mph.
Thursday Night
Mostly clear, with a low around 49. Northwest wind around 6 mph becoming calm in the evening.
Friday
Sunny, with a high near 82. Light south southwest wind becoming west southwest 6 to 11 mph in the morning.
Friday Night
Mostly clear, with a low around 51. Northwest wind 3 to 7 mph.
Saturday
Sunny, with a high near 80. Northwest wind 3 to 8 mph.
Saturday Night
Mostly clear, with a low around 50. North northwest wind around 5 mph becoming calm in the evening.
Sunday
Sunny, with a high near 80. Calm wind becoming northeast 5 to 7 mph in the afternoon.
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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:
5:46 pm CDT Aug 31, 2025
Forecast Valid:
8pm CDT Aug 31, 2025-6pm CDT Sep 7, 2025
 
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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