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

55°F

13°C

Humidity 47%
Wind Speed NE 13 G 16 mph
Barometer 30.37 in (1028.8 mb)
Dewpoint 35°F (2°C)
Visibility 10.00 mi
Wind Chill51°F (11°C)
Last update 7 Apr 2:56 pm CDT
Extended Forecast for

Mount Vernon IL

  • This Afternoon

    This Afternoon: Sunny, with a high near 56. East northeast wind around 9 mph.

    High: 56 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 40. East wind around 6 mph.

    Low: 40 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 73. South wind 6 to 10 mph.

    High: 73 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 53. South wind 7 to 9 mph, with gusts as high as 18 mph.

    Low: 53 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 76. South southwest wind 9 to 13 mph, with gusts as high as 20 mph.

    High: 76 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 56. South wind around 7 mph.

    Low: 56 °F

    Partly Cloudy

  • Friday

    Friday: A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 73. South southwest wind 7 to 10 mph becoming west in the afternoon. Chance of precipitation is 50%.

    High: 73 °F

    Slight Chance
    Showers then
    Chance
    T-storms

  • Friday Night

    Friday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 53. Light and variable wind.

    Low: 53 °F

    Chance
    T-storms

  • Saturday

    Saturday: Partly sunny, with a high near 75. East southeast wind around 6 mph.

    High: 75 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 56. East northeast wind around 9 mph.
Tonight
Mostly clear, with a low around 40. East wind around 6 mph.
Wednesday
Mostly sunny, with a high near 73. South wind 6 to 10 mph.
Wednesday Night
Mostly clear, with a low around 53. South wind 7 to 9 mph, with gusts as high as 18 mph.
Thursday
Sunny, with a high near 76. South southwest wind 9 to 13 mph, with gusts as high as 20 mph.
Thursday Night
Partly cloudy, with a low around 56. South wind around 7 mph.
Friday
A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 73. South southwest wind 7 to 10 mph becoming west in the afternoon. Chance of precipitation is 50%.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 53. Light and variable wind.
Saturday
Partly sunny, with a high near 75. East southeast wind around 6 mph.
Saturday Night
Partly cloudy, with a low around 58. East southeast wind around 6 mph.
Sunday
Mostly sunny, with a high near 82. South wind 6 to 16 mph, with gusts as high as 23 mph.
Sunday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 66. South wind 10 to 15 mph, with gusts as high as 25 mph.
Monday
A chance of showers and thunderstorms. Partly sunny, with a high near 80. Breezy, with a south southwest wind 16 to 20 mph, with gusts as high as 28 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Mount Vernon IL
 38.31°N 88.91°W
Last Update:
1:57 pm CDT Apr 7, 2026
Forecast Valid:
3pm CDT Apr 7, 2026-6pm CDT Apr 13, 2026
 
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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