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

28°F

-2°C

Humidity 43%
Wind Speed Vrbl 6 mph
Barometer 30.26 in
Dewpoint 8°F (-13°C)
Visibility 10.00 mi
Wind Chill21°F (-6°C)
Last update 20 Jan 3:35 am EST
Extended Forecast for

3 Miles NE Charlotte Hall MD

  • Overnight

    Overnight: Clear, with a low around 15. Northwest wind 11 to 13 mph, with gusts as high as 20 mph.

    Low: 15 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 31. West wind 8 to 10 mph, with gusts as high as 18 mph.

    High: 31 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 15. North wind around 5 mph becoming light and variable  in the evening.

    Low: 15 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 41. South wind 5 to 15 mph, with gusts as high as 24 mph.

    High: 41 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 32. South wind 9 to 11 mph.

    Low: 32 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 51.

    High: 51 °F

    Mostly 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 13.

    Low: 13 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Clear, with a low around 15. Northwest wind 11 to 13 mph, with gusts as high as 20 mph.
Tuesday
Sunny, with a high near 31. West wind 8 to 10 mph, with gusts as high as 18 mph.
Tuesday Night
Clear, with a low around 15. North wind around 5 mph becoming light and variable in the evening.
Wednesday
Sunny, with a high near 41. South wind 5 to 15 mph, with gusts as high as 24 mph.
Wednesday Night
Partly cloudy, with a low around 32. South wind 9 to 11 mph.
Thursday
Mostly sunny, with a high near 51.
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 13.
Saturday
A chance of snow. Mostly cloudy, with a high near 22. Chance of precipitation is 50%.
Saturday Night
Snow likely. Cloudy, with a low around 14. 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 11. Chance of precipitation is 30%.
Monday
Mostly sunny, with a high near 27.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NE Charlotte Hall MD
 38.5°N 76.75°W (Elev. 148 ft)
3:30 am EST Jan 20, 2026
3am EST Jan 20, 2026-6pm EST Jan 26, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

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