National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Mount Vernon Airport (KMVN)

Lat: 38.33°NLon: 88.85°WElev: 466ft.

Fair

72°F

22°C

Humidity 61%
Wind Speed Calm
Barometer 30.01 in (1016.1 mb)
Dewpoint 58°F (14°C)
Visibility 10.00 mi
Last update 18 Sep 9:56 pm CDT
Extended Forecast for

4 Miles WNW Belle Rive IL

  • Tonight

    Tonight: Mostly clear, with a low around 59. Light and variable wind.

    Low: 59 °F

    Mostly Clear

  • Friday

    Friday: A slight chance of showers between 1pm and 4pm, then a chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 91. Calm wind becoming west around 6 mph in the morning. Chance of precipitation is 30%.

    High: 91 °F

    Mostly Sunny
    then Chance
    Showers

  • Friday Night

    Friday Night: A 30 percent chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 63. Light and variable wind.

    Low: 63 °F

    Chance
    Showers

  • Saturday

    Saturday: A slight chance of showers and thunderstorms before 10am, then a slight chance of showers between 10am and 1pm. Mostly sunny, with a high near 90. Calm wind becoming south southwest around 5 mph in the afternoon. Chance of precipitation is 20%.

    High: 90 °F

    Slight Chance
    T-storms then
    Slight Chance
    Showers

  • Saturday Night

    Saturday Night: A slight chance of showers between 1am and 4am, then a slight chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 65. Calm wind. Chance of precipitation is 20%.

    Low: 65 °F

    Partly Cloudy
    then Slight
    Chance
    T-storms

  • Sunday

    Sunday: A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 87. Calm wind becoming southwest 5 to 9 mph in the morning.

    High: 87 °F

    Chance
    Showers then
    Chance
    T-storms

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 65. South wind 3 to 6 mph. Chance of precipitation is 60%.

    Low: 65 °F

    Showers
    Likely

  • Monday

    Monday: A chance of showers and thunderstorms. Partly sunny, with a high near 86. South southwest wind 6 to 10 mph.

    High: 86 °F

    Chance
    Showers then
    Chance
    T-storms

  • Monday Night

    Monday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 65. South wind 3 to 6 mph.

    Low: 65 °F

    Chance
    T-storms

Detailed Forecast

Tonight
Mostly clear, with a low around 59. Light and variable wind.
Friday
A slight chance of showers between 1pm and 4pm, then a chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 91. Calm wind becoming west around 6 mph in the morning. Chance of precipitation is 30%.
Friday Night
A 30 percent chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 63. Light and variable wind.
Saturday
A slight chance of showers and thunderstorms before 10am, then a slight chance of showers between 10am and 1pm. Mostly sunny, with a high near 90. Calm wind becoming south southwest around 5 mph in the afternoon. Chance of precipitation is 20%.
Saturday Night
A slight chance of showers between 1am and 4am, then a slight chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 65. Calm wind. Chance of precipitation is 20%.
Sunday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 87. Calm wind becoming southwest 5 to 9 mph in the morning.
Sunday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 65. South wind 3 to 6 mph. Chance of precipitation is 60%.
Monday
A chance of showers and thunderstorms. Partly sunny, with a high near 86. South southwest wind 6 to 10 mph.
Monday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 65. South wind 3 to 6 mph.
Tuesday
A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 83. South southwest wind 3 to 8 mph.
Tuesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 63. West southwest wind around 5 mph becoming calm in the evening.
Wednesday
A chance of showers. Partly sunny, with a high near 81. Light southeast wind becoming south 5 to 9 mph in the morning.
Wednesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 60. East wind 3 to 7 mph.
Thursday
A chance of showers and thunderstorms. Mostly sunny, with a high near 80. East wind 5 to 9 mph becoming west southwest in the afternoon.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles WNW Belle Rive IL
 38.24°N 88.81°W
Last Update:
7:46 pm CDT Sep 18, 2025
Forecast Valid:
10pm CDT Sep 18, 2025-6pm CDT Sep 25, 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