Lake-effect Snow and Whiteout Conditions in the Great Lakes Region; Below-average Temperatures in the East

Heavy lake-effect and lake-enhanced snow will persist downwind of the Great Lakes and produce some whiteout conditions that could cause difficult travel conditions. A coastal low will produce moderate to heavy snow over parts of southern and eastern New England into the afternoon. Below average temperatures are expected across the eastern U.S., particularly with chilly morning temperatures. Read More >

Current conditions at

St Marys County Airport (K2W6)

Lat: 38.32°NLon: 76.55°WElev: 144ft.

Fair

23°F

-5°C

Humidity 37%
Wind Speed NW 5 mph
Barometer 30.39 in
Dewpoint 1°F (-17°C)
Visibility 8.00 mi
Wind Chill17°F (-8°C)
Last update 20 Jan 8:35 am EST
Extended Forecast for

Leonardtown MD

  • Today

    Today: Sunny, with a high near 32. West wind 8 to 10 mph.

    High: 32 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 17. North wind around 5 mph becoming light and variable  in the evening.

    Low: 17 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 41. South wind 5 to 14 mph, with gusts as high as 23 mph.

    High: 41 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 33. South wind 7 to 11 mph, with gusts as high as 18 mph.

    Low: 33 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 51. West wind 6 to 9 mph.

    High: 51 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 27.

    Low: 27 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 39.

    High: 39 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 14.

    Low: 14 °F

    Mostly Cloudy

  • Saturday

    Saturday: A chance of snow.  Mostly cloudy, with a high near 23. Chance of precipitation is 50%.

    High: 23 °F

    Chance Snow

Detailed Forecast

Today
Sunny, with a high near 32. West wind 8 to 10 mph.
Tonight
Clear, with a low around 17. North wind around 5 mph becoming light and variable in the evening.
Wednesday
Sunny, with a high near 41. South wind 5 to 14 mph, with gusts as high as 23 mph.
Wednesday Night
Partly cloudy, with a low around 33. South wind 7 to 11 mph, with gusts as high as 18 mph.
Thursday
Sunny, with a high near 51. West wind 6 to 9 mph.
Thursday Night
Partly cloudy, with a low around 27.
Friday
Partly sunny, with a high near 39.
Friday Night
Mostly cloudy, with a low around 14.
Saturday
A chance of snow. Mostly cloudy, with a high near 23. Chance of precipitation is 50%.
Saturday Night
Snow likely. Cloudy, with a low around 16. Chance of precipitation is 70%.
Sunday
Snow likely. Mostly cloudy, with a high near 25. Chance of precipitation is 70%.
Sunday Night
A chance of snow. Mostly cloudy, with a low around 12. Chance of precipitation is 30%.
Monday
Mostly sunny, with a high near 27.
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ABOUT THIS FORECAST

 
Point Forecast:
Leonardtown MD
 38.29°N 76.64°W (Elev. 16 ft)
6:53 am EST Jan 20, 2026
8am EST Jan 20, 2026-6pm EST Jan 26, 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