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 Fog/Mist and Breezy

61°F

16°C

Humidity 93%
Wind Speed S 21 G 28 mph
Barometer 29.38 in (995.2 mb)
Dewpoint 59°F (15°C)
Visibility 5.00 mi
Last update 15 Mar 5:56 pm CDT
Extended Forecast for

Mount Vernon IL

Tornado Watch until March 15, 11:00pm
High Wind Warning March 15, 06:26pm until March 15, 09:00pm
Click here for hazard details and duration
...
...
  •  
    Tornado Watch until March 15, 11:00pm
    High Wind Warning March 15, 06:26pm until March 15, 09:00pm

    NOW: Multiple hazards in effect

    Click HERE for Details

  • Tonight

    Low: 25 °F

    Breezy. Heavy
    Rain then
    Slight Chance
    Snow Showers

  • Monday

    Monday: A slight chance of snow showers between 9am and 1pm. Mostly cloudy, with a high near 32. Breezy, with a west northwest wind around 22 mph, with gusts as high as 39 mph. Chance of precipitation is 20%.

    High: 32 °F

    Slight Chance
    Snow Showers
    and Breezy

  • Monday Night

    Monday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 15. West northwest wind 11 to 18 mph, with gusts as high as 28 mph.

    Low: 15 °F

    Decreasing
    Clouds

  • Tuesday

    Tuesday: Sunny, with a high near 35. Northwest wind 6 to 9 mph.

    High: 35 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A 30 percent chance of snow showers after 1am. Mostly cloudy, with a low around 28. Light south wind increasing to 6 to 11 mph in the evening. Winds could gust as high as 21 mph.

    Low: 28 °F

    Mostly Cloudy
    then Chance
    Snow Showers

  • Wednesday

    Wednesday: Mostly sunny, with a high near 58. Southwest wind 11 to 14 mph, with gusts as high as 23 mph.

    High: 58 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 41. South southwest wind around 6 mph.

    Low: 41 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 68. South southwest wind 5 to 7 mph becoming west northwest in the afternoon.

    High: 68 °F

    Sunny

Detailed Forecast

Tonight
Rain showers before 11pm, then a slight chance of snow showers after 5am. The rain could be heavy at times. Some thunder is also possible. Low around 25. Breezy, with a west wind 15 to 25 mph, with gusts as high as 41 mph. Chance of precipitation is 100%. Total nighttime snow accumulation of less than a half inch possible.
Monday
A slight chance of snow showers between 9am and 1pm. Mostly cloudy, with a high near 32. Breezy, with a west northwest wind around 22 mph, with gusts as high as 39 mph. Chance of precipitation is 20%.
Monday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 15. West northwest wind 11 to 18 mph, with gusts as high as 28 mph.
Tuesday
Sunny, with a high near 35. Northwest wind 6 to 9 mph.
Tuesday Night
A 30 percent chance of snow showers after 1am. Mostly cloudy, with a low around 28. Light south wind increasing to 6 to 11 mph in the evening. Winds could gust as high as 21 mph.
Wednesday
Mostly sunny, with a high near 58. Southwest wind 11 to 14 mph, with gusts as high as 23 mph.
Wednesday Night
Partly cloudy, with a low around 41. South southwest wind around 6 mph.
Thursday
Sunny, with a high near 68. South southwest wind 5 to 7 mph becoming west northwest in the afternoon.
Thursday Night
Mostly clear, with a low around 43. Light and variable wind.
Friday
Mostly sunny, with a high near 72. Light and variable wind becoming southwest 5 to 8 mph in the morning.
Friday Night
Mostly cloudy, with a low around 50. South southwest wind around 7 mph.
Saturday
Sunny, with a high near 75. West wind 7 to 10 mph.
Saturday Night
Mostly clear, with a low around 46. Northwest wind around 8 mph becoming northeast after midnight.
Sunday
Mostly sunny, with a high near 72. East wind 7 to 10 mph becoming south in the afternoon.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mount Vernon IL
 38.31°N 88.91°W
Last Update:
5:17 pm CDT Mar 15, 2026
Forecast Valid:
6pm CDT Mar 15, 2026-6pm CDT Mar 22, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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