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

5 Miles SW Dahlgren IL

Tornado Watch until March 15, 11:00pm
High Wind Warning March 15, 06:31pm until March 15, 09:00pm
Click here for hazard details and duration
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  •  
    Tornado Watch until March 15, 11:00pm
    High Wind Warning March 15, 06:31pm until March 15, 09:00pm

    NOW: Multiple hazards in effect

    Click HERE for Details

  • Tonight

    Low: 25 °F

    Breezy. Heavy
    Rain then
    Mostly Cloudy

  • 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 23 mph, with gusts as high as 38 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 16. West northwest wind 11 to 18 mph, with gusts as high as 26 mph.

    Low: 16 °F

    Decreasing
    Clouds

  • Tuesday

    Tuesday: Sunny, with a high near 35. Northwest wind 6 to 10 mph.

    High: 35 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A 20 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 Slight
    Chance Snow
    Showers

  • Wednesday

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

    High: 58 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 41. South southwest wind around 7 mph.

    Low: 41 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 68. Southwest wind 6 to 8 mph becoming west northwest in the afternoon.

    High: 68 °F

    Sunny

Detailed Forecast

Tonight
Showers and possibly a thunderstorm before 10pm, then a chance of showers between 10pm and 11pm. Some of the storms could produce heavy rainfall. Low around 25. Breezy, with a west wind 20 to 25 mph, with gusts as high as 41 mph. Chance of precipitation is 100%.
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 23 mph, with gusts as high as 38 mph. Chance of precipitation is 20%.
Monday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 16. West northwest wind 11 to 18 mph, with gusts as high as 26 mph.
Tuesday
Sunny, with a high near 35. Northwest wind 6 to 10 mph.
Tuesday Night
A 20 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
Partly 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 7 mph.
Thursday
Sunny, with a high near 68. Southwest wind 6 to 8 mph becoming west northwest in the afternoon.
Thursday Night
Mostly clear, with a low around 43. Northwest wind around 5 mph becoming light and variable after midnight.
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. Southwest wind 6 to 8 mph.
Saturday
Sunny, with a high near 75. West wind 8 to 11 mph.
Saturday Night
Mostly clear, with a low around 46. Northwest wind around 9 mph becoming northeast after midnight.
Sunday
Mostly sunny, with a high near 72. East wind 8 to 11 mph becoming south southwest in the afternoon.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SW Dahlgren IL
 38.15°N 88.75°W
5:17 pm CDT Mar 15, 2026
6pm CDT Mar 15, 2026-6pm CDT Mar 22, 2026
 
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Additional Resources

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