Current conditions at

Mount Vernon Airport (KMVN)

Lat: 38.33°NLon: 88.85°WElev: 466ft.

Fog/Mist

72°F

22°C

Humidity 100%
Wind Speed Calm
Barometer 30.02 in (1016.5 mb)
Dewpoint 72°F (22°C)
Visibility 5.00 mi
Last update 17 Aug 4:56 am CDT
Extended Forecast for

4 Miles NNW Macedonia IL

Heat Advisory August 17, 05:20am until August 19, 07:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory August 17, 05:20am until August 19, 07:00pm

    NOW until 7:00pm Tue

    Heat Advisory

  • Today

    High: 97 °F

    Sunny then
    Slight Chance
    T-storms

  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms before 10pm.  Partly cloudy, with a low around 75. Light east wind.

    Low: 75 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Monday

    Monday: Sunny and hot, with a high near 97. Light east wind.

    High: 97 °F

    Hot

  • Monday Night

    Monday Night: Mostly clear, with a low around 75. Light southeast wind.

    Low: 75 °F

    Mostly Clear

  • Tuesday

    Tuesday: A 20 percent chance of showers and thunderstorms after 1pm.  Sunny and hot, with a high near 97. Calm wind becoming west northwest around 6 mph in the afternoon.

    High: 97 °F

    Sunny then
    Slight Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A 40 percent chance of showers and thunderstorms.  Partly cloudy, with a low around 73. Light north northwest wind.

    Low: 73 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: A 30 percent chance of showers and thunderstorms.  Partly sunny, with a high near 89. Light north wind increasing to 5 to 9 mph in the morning.

    High: 89 °F

    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 68. North northeast wind 5 to 7 mph.

    Low: 68 °F

    Partly Cloudy

Detailed Forecast

Today
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny and hot, with a high near 97. Calm wind becoming east northeast around 5 mph in the afternoon.
Tonight
A 20 percent chance of showers and thunderstorms before 10pm. Partly cloudy, with a low around 75. Light east wind.
Monday
Sunny and hot, with a high near 97. Light east wind.
Monday Night
Mostly clear, with a low around 75. Light southeast wind.
Tuesday
A 20 percent chance of showers and thunderstorms after 1pm. Sunny and hot, with a high near 97. Calm wind becoming west northwest around 6 mph in the afternoon.
Tuesday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 73. Light north northwest wind.
Wednesday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 89. Light north wind increasing to 5 to 9 mph in the morning.
Wednesday Night
Partly cloudy, with a low around 68. North northeast wind 5 to 7 mph.
Thursday
Mostly sunny, with a high near 88. North northeast wind 5 to 10 mph.
Thursday Night
Mostly clear, with a low around 68. North northeast wind 5 to 7 mph becoming calm in the evening.
Friday
Sunny, with a high near 90. Calm wind becoming north northeast around 6 mph in the morning.
Friday Night
Mostly clear, with a low around 68. Northeast wind around 5 mph becoming calm in the evening.
Saturday
Sunny, with a high near 91. Calm wind becoming north around 6 mph in the afternoon.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NNW Macedonia IL
 38.11°N 88.73°W
4:30 am CDT Aug 17, 2025
5am CDT Aug 17, 2025-6pm CDT Aug 23, 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