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.

A Few Clouds

88°F

31°C

Humidity 66%
Wind Speed Calm
Barometer 29.97 in (1014.9 mb)
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index98°F (37°C)
Last update 27 Jun 5:56 pm CDT
Extended Forecast for

2 Miles E Mount Vernon IL

  • Tonight

    Tonight: A 50 percent chance of showers and thunderstorms, mainly after 3am. Mostly cloudy, with a low around 71. West wind around 5 mph becoming calm in the evening.

    Low: 71 °F

    Chance
    T-storms then
    Chance
    Showers

  • Saturday

    Saturday: A 30 percent chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 89. Calm wind becoming west southwest around 5 mph.

    High: 89 °F

    Chance
    Showers then
    Chance
    T-storms

  • Saturday Night

    Saturday Night: A slight chance of showers and thunderstorms between 1am and 4am, then a slight chance of showers after 4am. Mostly cloudy, with a low around 72. Calm wind. Chance of precipitation is 20%.

    Low: 72 °F

    Mostly Cloudy
    then Slight
    Chance
    T-storms

  • Sunday

    Sunday: Showers likely, with thunderstorms also possible after 7am. Partly sunny, with a high near 86. Calm wind becoming south southwest around 6 mph in the afternoon. Chance of precipitation is 70%.

    High: 86 °F

    Showers
    Likely

  • Sunday Night

    Sunday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 71. Light south wind.

    Low: 71 °F

    Chance
    T-storms

  • Monday

    Monday: Showers and possibly a thunderstorm. High near 87. Calm wind becoming west southwest 5 to 7 mph in the morning. Chance of precipitation is 80%.

    High: 87 °F

    Showers
    Likely then
    T-storms

  • Monday Night

    Monday Night: A 30 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 69. Light and variable wind.

    Low: 69 °F

    Chance
    T-storms

  • Tuesday

    Tuesday: Mostly sunny, with a high near 87. Calm wind becoming north northwest around 6 mph in the morning.

    High: 87 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 65. Calm wind.

    Low: 65 °F

    Mostly Clear

Detailed Forecast

Tonight
A 50 percent chance of showers and thunderstorms, mainly after 3am. Mostly cloudy, with a low around 71. West wind around 5 mph becoming calm in the evening.
Saturday
A 30 percent chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 89. Calm wind becoming west southwest around 5 mph.
Saturday Night
A slight chance of showers and thunderstorms between 1am and 4am, then a slight chance of showers after 4am. Mostly cloudy, with a low around 72. Calm wind. Chance of precipitation is 20%.
Sunday
Showers likely, with thunderstorms also possible after 7am. Partly sunny, with a high near 86. Calm wind becoming south southwest around 6 mph in the afternoon. Chance of precipitation is 70%.
Sunday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 71. Light south wind.
Monday
Showers and possibly a thunderstorm. High near 87. Calm wind becoming west southwest 5 to 7 mph in the morning. Chance of precipitation is 80%.
Monday Night
A 30 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 69. Light and variable wind.
Tuesday
Mostly sunny, with a high near 87. Calm wind becoming north northwest around 6 mph in the morning.
Tuesday Night
Mostly clear, with a low around 65. Calm wind.
Wednesday
Sunny, with a high near 89. Light west northwest wind.
Wednesday Night
Mostly clear, with a low around 66. Calm wind.
Thursday
Sunny, with a high near 90. Light south southwest wind.
Thursday Night
Mostly clear, with a low around 69. Calm wind.
Independence Day
A chance of showers and thunderstorms. Mostly sunny, with a high near 91. Calm wind becoming south southwest 5 to 7 mph in the morning.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles E Mount Vernon IL
 38.31°N 88.86°W
Last Update:
5:47 pm CDT Jun 27, 2025
Forecast Valid:
6pm CDT Jun 27, 2025-6pm CDT Jul 4, 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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation