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Hazardous Weather Conditions

Current conditions at

Mount Vernon Airport (KMVN)

Lat: 38.33°NLon: 88.85°WElev: 466ft.

Fair

78°F

26°C

Humidity 85%
Wind Speed S 9 mph
Barometer 30.00 in (1015.6 mb)
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 21 Jun 1:56 am CDT
Extended Forecast for

3 Miles SSE Mount Vernon IL

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

  • Overnight

    Overnight: Mostly clear, with a low around 75. South wind around 8 mph.

    Low: 75 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 95. Heat index values as high as 105. South southwest wind 9 to 16 mph, with gusts as high as 23 mph.

    High: 95 °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: Mostly clear, with a low around 76. South wind 3 to 6 mph.

    Low: 76 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 94. South southwest wind 3 to 7 mph.

    High: 94 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 75. South wind around 6 mph becoming calm in the evening.

    Low: 75 °F

    Mostly Clear

  • Tuesday

    Tuesday: A slight chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 93. Calm wind becoming south around 5 mph in the afternoon.

    High: 93 °F

    Slight Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 75. Light south wind.

    Low: 75 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around 75. South wind around 8 mph.
Saturday
Sunny, with a high near 95. Heat index values as high as 105. South southwest wind 9 to 16 mph, with gusts as high as 23 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
Mostly clear, with a low around 76. South wind 3 to 6 mph.
Monday
Sunny, with a high near 94. South southwest wind 3 to 7 mph.
Monday Night
Mostly clear, with a low around 75. South wind around 6 mph becoming calm in the evening.
Tuesday
A slight chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 93. Calm wind becoming south around 5 mph in the afternoon.
Tuesday Night
Partly cloudy, with a low around 75. Light south wind.
Wednesday
Sunny, with a high near 94. Calm wind becoming southwest around 6 mph in the afternoon.
Wednesday Night
Mostly clear, with a low around 76. South southwest wind around 5 mph becoming calm in the evening.
Thursday
A slight chance of showers and thunderstorms. Sunny, with a high near 93. Calm wind becoming south southwest 5 to 8 mph in the morning.
Thursday Night
Mostly clear, with a low around 75. South southwest wind 3 to 6 mph.
Friday
A chance of showers and thunderstorms. Mostly sunny, with a high near 92. Southwest wind 3 to 8 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSE Mount Vernon IL
 38.29°N 88.89°W
Last Update:
2:00 am CDT Jun 21, 2025
Forecast Valid:
2am CDT Jun 21, 2025-6pm CDT Jun 27, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

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Chance of Precipitation