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.

N/A

Humidity NA
Wind Speed NA
Barometer NA
Dewpoint N/A
Visibility NA
Last update *** Not a current observation ***
Extended Forecast for

3 Miles ENE Mount Vernon IL

  • Today

    Today: Sunny, with a high near 90. Calm wind becoming east northeast 5 to 7 mph in the morning.

    High: 90 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 70. Light and variable wind.

    Low: 70 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 90. Light and variable wind.

    High: 90 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 72. Calm wind.

    Low: 72 °F

    Mostly Clear

  • Thursday

    Thursday: A 30 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 90. Calm wind.

    High: 90 °F

    Sunny then
    Chance
    T-storms

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 73. Calm wind.

    Low: 73 °F

    Mostly Clear

  • Friday

    Friday: Showers and thunderstorms likely, mainly after 1pm. Mostly sunny, with a high near 91. Calm wind becoming west around 5 mph in the afternoon. Chance of precipitation is 60%.

    High: 91 °F

    Chance
    T-storms then
    T-storms
    Likely

  • Friday Night

    Friday Night: A slight chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 73. Calm wind.

    Low: 73 °F

    Slight Chance
    T-storms

  • Saturday

    Saturday: A chance of showers and thunderstorms after 1pm. Sunny, with a high near 92. Calm wind becoming west 5 to 9 mph in the morning.

    High: 92 °F

    Mostly Sunny
    then Chance
    T-storms

Detailed Forecast

Today
Sunny, with a high near 90. Calm wind becoming east northeast 5 to 7 mph in the morning.
Tonight
Mostly clear, with a low around 70. Light and variable wind.
Wednesday
Sunny, with a high near 90. Light and variable wind.
Wednesday Night
Mostly clear, with a low around 72. Calm wind.
Thursday
A 30 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 90. Calm wind.
Thursday Night
Mostly clear, with a low around 73. Calm wind.
Friday
Showers and thunderstorms likely, mainly after 1pm. Mostly sunny, with a high near 91. Calm wind becoming west around 5 mph in the afternoon. Chance of precipitation is 60%.
Friday Night
A slight chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 73. Calm wind.
Saturday
A chance of showers and thunderstorms after 1pm. Sunny, with a high near 92. Calm wind becoming west 5 to 9 mph in the morning.
Saturday Night
A slight chance of showers and thunderstorms before 1am. Mostly clear, with a low around 74. Light west southwest wind.
Sunday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 91. West wind 5 to 9 mph.
Sunday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 71. Southwest wind 3 to 6 mph.
Monday
Mostly sunny, with a high near 90. West wind 3 to 8 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles ENE Mount Vernon IL
 38.33°N 88.86°W
Last Update:
5:41 am CDT Jul 14, 2026
Forecast Valid:
5am CDT Jul 14, 2026-6pm CDT Jul 20, 2026
 
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