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.

Light Rain

72°F

22°C

Humidity 84%
Wind Speed Calm
Barometer 30.09 in (1018.9 mb)
Dewpoint 67°F (19°C)
Visibility 7.00 mi
Last update 19 May 9:56 pm CDT
Extended Forecast for

3 Miles E Mount Vernon IL

  • Tonight

    Tonight: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 5am. Mostly cloudy, with a low around 58. Calm wind becoming north 5 to 7 mph after midnight. Chance of precipitation is 60%.

    Low: 58 °F

    Slight Chance
    T-storms then
    Showers
    Likely

  • Wednesday

    Wednesday: Showers and thunderstorms likely before noon, then a slight chance of showers between noon and 1pm. Mostly cloudy, with a high near 65. North northeast wind 8 to 10 mph. Chance of precipitation is 60%.

    High: 65 °F

    Showers
    Likely then
    Slight Chance
    Showers

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 53. Northeast wind 5 to 7 mph.

    Low: 53 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 72. East northeast wind 7 to 9 mph.

    High: 72 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Showers likely, with thunderstorms also possible after 4am. Mostly cloudy, with a low around 57. East northeast wind 6 to 8 mph. Chance of precipitation is 70%.

    Low: 57 °F

    Slight Chance
    Showers then
    Showers
    Likely

  • Friday

    Friday: Showers and possibly a thunderstorm. High near 74. East wind around 8 mph becoming south in the afternoon. Chance of precipitation is 90%.

    High: 74 °F

    Showers

  • Friday Night

    Friday Night: A chance of showers and thunderstorms before 1am, then a slight chance of showers. Mostly cloudy, with a low around 60. West southwest wind around 6 mph becoming calm in the evening. Chance of precipitation is 40%.

    Low: 60 °F

    Chance
    Showers

  • Saturday

    Saturday: A slight chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 80. Light west southwest wind.

    High: 80 °F

    Partly Sunny
    then Slight
    Chance
    T-storms

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 61. Calm wind.

    Low: 61 °F

    Chance
    T-storms

Detailed Forecast

Tonight
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 5am. Mostly cloudy, with a low around 58. Calm wind becoming north 5 to 7 mph after midnight. Chance of precipitation is 60%.
Wednesday
Showers and thunderstorms likely before noon, then a slight chance of showers between noon and 1pm. Mostly cloudy, with a high near 65. North northeast wind 8 to 10 mph. Chance of precipitation is 60%.
Wednesday Night
Mostly cloudy, with a low around 53. Northeast wind 5 to 7 mph.
Thursday
Partly sunny, with a high near 72. East northeast wind 7 to 9 mph.
Thursday Night
Showers likely, with thunderstorms also possible after 4am. Mostly cloudy, with a low around 57. East northeast wind 6 to 8 mph. Chance of precipitation is 70%.
Friday
Showers and possibly a thunderstorm. High near 74. East wind around 8 mph becoming south in the afternoon. Chance of precipitation is 90%.
Friday Night
A chance of showers and thunderstorms before 1am, then a slight chance of showers. Mostly cloudy, with a low around 60. West southwest wind around 6 mph becoming calm in the evening. Chance of precipitation is 40%.
Saturday
A slight chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 80. Light west southwest wind.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 61. Calm wind.
Sunday
A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 80. Calm wind.
Sunday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 63. Calm wind.
Memorial Day
A chance of showers and thunderstorms. Mostly cloudy, with a high near 81. Calm wind becoming east southeast around 5 mph in the afternoon.
Monday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 65. Light east southeast wind.
Tuesday
A chance of showers and thunderstorms. Partly sunny, with a high near 84. Calm wind becoming south 5 to 7 mph in the morning.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles E Mount Vernon IL
 38.33°N 88.86°W
Last Update:
8:31 pm CDT May 19, 2026
Forecast Valid:
10pm CDT May 19, 2026-6pm CDT May 26, 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