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.

Fog/Mist

63°F

17°C

Humidity 100%
Wind Speed Calm
Barometer 30.05 in (1017.7 mb)
Dewpoint 63°F (17°C)
Visibility 1.00 mi
Last update 20 Jun 4:56 am CDT
Extended Forecast for

3 Miles WSW Belle Rive IL

Heat Advisory June 21, 12:00pm until June 24, 07:00pm
Click here for hazard details and duration
Heat Advisory

  • Today

    Today: Sunny, with a high near 89. Light south wind becoming south southwest 5 to 10 mph in the morning.

    High: 89 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 74. South wind 7 to 9 mph.

    Low: 74 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 94. Heat index values as high as 105. South southwest wind 8 to 14 mph, with gusts as high as 20 mph.

    High: 94 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 75. South wind 6 to 10 mph.

    Low: 75 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 95. South southwest wind 6 to 10 mph.

    High: 95 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 75. South wind 3 to 6 mph.

    Low: 75 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 94. South wind 3 to 6 mph.

    High: 94 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 76. South wind around 5 mph becoming calm in the evening.

    Low: 76 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 94. Calm wind becoming south around 5 mph in the afternoon.

    High: 94 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 89. Light south wind becoming south southwest 5 to 10 mph in the morning.
Tonight
Mostly clear, with a low around 74. South wind 7 to 9 mph.
Saturday
Sunny, with a high near 94. Heat index values as high as 105. South southwest wind 8 to 14 mph, with gusts as high as 20 mph.
Saturday Night
Clear, with a low around 75. South wind 6 to 10 mph.
Sunday
Sunny, with a high near 95. South southwest wind 6 to 10 mph.
Sunday Night
Clear, with a low around 75. South wind 3 to 6 mph.
Monday
Sunny, with a high near 94. South wind 3 to 6 mph.
Monday Night
Mostly clear, with a low around 76. South wind around 5 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 94. Calm wind becoming south around 5 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 75. Calm wind.
Wednesday
A slight chance of showers and thunderstorms. Sunny, with a high near 93. Calm wind becoming south southwest around 6 mph in the afternoon.
Wednesday Night
Mostly clear, with a low around 75. Light south southwest wind.
Thursday
A slight chance of showers and thunderstorms. Sunny, with a high near 93. Calm wind becoming south southwest 5 to 7 mph in the morning.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WSW Belle Rive IL
 38.22°N 88.81°W
Last Update:
5:16 am CDT Jun 20, 2025
Forecast Valid:
5am CDT Jun 20, 2025-6pm CDT Jun 26, 2025
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation