National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Mount Vernon Airport (KMVN)

Lat: 38.33°NLon: 88.85°WElev: 466ft.

Fair

79°F

26°C

Humidity 54%
Wind Speed S 9 mph
Barometer 29.92 in (1013.0 mb)
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 17 May 7:56 pm CDT
Extended Forecast for

4 Miles ENE Ewing IL

  • Tonight

    Tonight: Mostly clear, with a low around 70. South wind 9 to 11 mph, with gusts as high as 21 mph.

    Low: 70 °F

    Mostly Clear

  • Monday

    Monday: Showers and thunderstorms likely, mainly after 5pm. Mostly sunny, with a high near 87. South southwest wind 11 to 18 mph, with gusts as high as 25 mph. Chance of precipitation is 60%.

    High: 87 °F

    Slight Chance
    T-storms then
    T-storms
    Likely

  • Monday Night

    Monday Night: Showers and thunderstorms likely, mainly before 10pm. Partly cloudy, with a low around 71. South wind 11 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 60%.

    Low: 71 °F

    T-storms
    Likely then
    Slight Chance
    T-storms

  • Tuesday

    Tuesday: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1pm. High near 87. Breezy, with a south southwest wind 14 to 20 mph, with gusts as high as 25 mph. Chance of precipitation is 80%.

    High: 87 °F

    Breezy.
    Chance
    Showers then
    Showers

  • Tuesday Night

    Tuesday Night: Showers and possibly a thunderstorm before 4am, then showers likely. Low around 61. West southwest wind 5 to 9 mph becoming light and variable. Chance of precipitation is 90%.

    Low: 61 °F

    Showers

  • Wednesday

    Wednesday: A slight chance of showers and thunderstorms before 10am, then a slight chance of showers between 10am and 1pm, then a slight chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 73. North wind around 10 mph. Chance of precipitation is 20%.

    High: 73 °F

    Slight Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers. Mostly cloudy, with a low around 53. Northeast wind 7 to 9 mph.

    Low: 53 °F

    Slight Chance
    Showers

  • Thursday

    Thursday: Partly sunny, with a high near 74. East northeast wind around 8 mph.

    High: 74 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: A chance of showers after 1am. Mostly cloudy, with a low around 57. East wind 3 to 6 mph.

    Low: 57 °F

    Mostly Cloudy
    then Chance
    Showers

Detailed Forecast

Tonight
Mostly clear, with a low around 70. South wind 9 to 11 mph, with gusts as high as 21 mph.
Monday
Showers and thunderstorms likely, mainly after 5pm. Mostly sunny, with a high near 87. South southwest wind 11 to 18 mph, with gusts as high as 25 mph. Chance of precipitation is 60%.
Monday Night
Showers and thunderstorms likely, mainly before 10pm. Partly cloudy, with a low around 71. South wind 11 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 60%.
Tuesday
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1pm. High near 87. Breezy, with a south southwest wind 14 to 20 mph, with gusts as high as 25 mph. Chance of precipitation is 80%.
Tuesday Night
Showers and possibly a thunderstorm before 4am, then showers likely. Low around 61. West southwest wind 5 to 9 mph becoming light and variable. Chance of precipitation is 90%.
Wednesday
A slight chance of showers and thunderstorms before 10am, then a slight chance of showers between 10am and 1pm, then a slight chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 73. North wind around 10 mph. Chance of precipitation is 20%.
Wednesday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 53. Northeast wind 7 to 9 mph.
Thursday
Partly sunny, with a high near 74. East northeast wind around 8 mph.
Thursday Night
A chance of showers after 1am. Mostly cloudy, with a low around 57. East wind 3 to 6 mph.
Friday
A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 77. East southeast wind around 6 mph becoming west southwest in the afternoon.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 61. East southeast wind around 6 mph becoming calm in the evening.
Saturday
A chance of showers and thunderstorms. Partly sunny, with a high near 82. Calm wind becoming east northeast around 5 mph in the morning.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 63. Light south wind.
Sunday
A chance of showers and thunderstorms. Mostly sunny, with a high near 86. Calm wind becoming south southwest around 6 mph in the morning.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles ENE Ewing IL
 38.11°N 88.79°W
Last Update:
8:01 pm CDT May 17, 2026
Forecast Valid:
8pm CDT May 17, 2026-6pm CDT May 24, 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