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Hazardous Weather Conditions

Current conditions at

Mount Vernon Airport (KMVN)

Lat: 38.33°NLon: 88.85°WElev: 466ft.

Fair

67°F

19°C

Humidity 100%
Wind Speed Calm
Barometer 30.06 in (1018.0 mb)
Dewpoint 67°F (19°C)
Visibility 10.00 mi
Last update 20 Jun 6:56 am CDT
Extended Forecast for

3 Miles SSE Dahlgren 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. Calm wind becoming south southwest 5 to 9 mph in the morning.

    High: 89 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 74. South wind 6 to 8 mph.

    Low: 74 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 94. South southwest wind 8 to 13 mph, with gusts as high as 18 mph.

    High: 94 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 76. South wind 6 to 10 mph.

    Low: 76 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 95. South southwest wind 6 to 9 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 southwest 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. Light south southwest wind.

    High: 94 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 89. Calm wind becoming south southwest 5 to 9 mph in the morning.
Tonight
Clear, with a low around 74. South wind 6 to 8 mph.
Saturday
Sunny, with a high near 94. South southwest wind 8 to 13 mph, with gusts as high as 18 mph.
Saturday Night
Clear, with a low around 76. South wind 6 to 10 mph.
Sunday
Sunny, with a high near 95. South southwest wind 6 to 9 mph.
Sunday Night
Clear, with a low around 75. South wind 3 to 6 mph.
Monday
Sunny, with a high near 94. South southwest 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. Light south southwest wind.
Tuesday Night
Mostly clear, with a low around 76. Calm wind.
Wednesday
A slight chance of showers and thunderstorms. Sunny, with a high near 94. Calm wind becoming southwest around 5 mph in the afternoon.
Wednesday Night
Mostly clear, with a low around 75. Light south wind.
Thursday
A slight chance of showers and thunderstorms. Sunny, with a high near 93. Calm wind becoming south southwest around 6 mph in the morning.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSE Dahlgren IL
 38.15°N 88.67°W
Last Update:
5:46 am CDT Jun 20, 2025
Forecast Valid:
7am CDT Jun 20, 2025-6pm CDT Jun 26, 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