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Hazardous Weather Conditions

Current conditions at

Mount Vernon Airport (KMVN)

Lat: 38.33°NLon: 88.85°WElev: 466ft.

Fair

46°F

8°C

Humidity 86%
Wind Speed S 6 mph
Barometer 29.95 in (1014.6 mb)
Dewpoint 42°F (6°C)
Visibility 10.00 mi
Wind Chill43°F (6°C)
Last update 9 Mar 1:56 am CDT
Extended Forecast for

Mount Vernon IL

  • Overnight

    Overnight: Clear, with a low around 45. South southwest wind around 7 mph.

    Low: 45 °F

    Clear

  • Monday

    Monday: Mostly sunny, with a high near 72. South southwest wind 7 to 15 mph, with gusts as high as 24 mph.

    High: 72 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 61. South southwest wind 8 to 13 mph, with gusts as high as 22 mph.

    Low: 61 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A 20 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 78. South southwest wind 7 to 14 mph, with gusts as high as 23 mph.

    High: 78 °F

    Partly Sunny
    then Slight
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1am. Low around 62. South southwest wind around 14 mph, with gusts as high as 25 mph. Chance of precipitation is 90%.

    Low: 62 °F

    Chance
    T-storms then
    Showers

  • Wednesday

    Wednesday: Showers and possibly a thunderstorm. High near 70. South southwest wind 15 to 17 mph becoming northwest in the afternoon. Winds could gust as high as 26 mph. Chance of precipitation is 100%.

    High: 70 °F

    Showers

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 34. Breezy, with a north northwest wind 10 to 20 mph, with gusts as high as 29 mph.

    Low: 34 °F

    Mostly Cloudy
    and Breezy
    then Partly
    Cloudy

  • Thursday

    Thursday: Sunny, with a high near 53. North northwest wind around 6 mph becoming southwest in the afternoon.

    High: 53 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 41. South wind 6 to 16 mph, with gusts as high as 28 mph.

    Low: 41 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Clear, with a low around 45. South southwest wind around 7 mph.
Monday
Mostly sunny, with a high near 72. South southwest wind 7 to 15 mph, with gusts as high as 24 mph.
Monday Night
Partly cloudy, with a low around 61. South southwest wind 8 to 13 mph, with gusts as high as 22 mph.
Tuesday
A 20 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 78. South southwest wind 7 to 14 mph, with gusts as high as 23 mph.
Tuesday Night
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1am. Low around 62. South southwest wind around 14 mph, with gusts as high as 25 mph. Chance of precipitation is 90%.
Wednesday
Showers and possibly a thunderstorm. High near 70. South southwest wind 15 to 17 mph becoming northwest in the afternoon. Winds could gust as high as 26 mph. Chance of precipitation is 100%.
Wednesday Night
Mostly cloudy, with a low around 34. Breezy, with a north northwest wind 10 to 20 mph, with gusts as high as 29 mph.
Thursday
Sunny, with a high near 53. North northwest wind around 6 mph becoming southwest in the afternoon.
Thursday Night
Mostly cloudy, with a low around 41. South wind 6 to 16 mph, with gusts as high as 28 mph.
Friday
Partly sunny, with a high near 63. Southwest wind 11 to 16 mph becoming west northwest in the afternoon. Winds could gust as high as 26 mph.
Friday Night
Partly cloudy, with a low around 38. Northwest wind around 5 mph becoming east after midnight.
Saturday
Mostly sunny, with a high near 64. East wind 6 to 11 mph becoming south in the afternoon. Winds could gust as high as 18 mph.
Saturday Night
A slight chance of showers. Mostly cloudy, with a low around 50. South southeast wind 8 to 13 mph, with gusts as high as 24 mph.
Sunday
A chance of showers. Mostly cloudy, with a high near 68. South southwest wind 14 to 18 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:
1:26 am CDT Mar 9, 2026
Forecast Valid:
2am CDT Mar 9, 2026-6pm CDT Mar 15, 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