National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Late January Extreme Cold; Watching East Coast Storm Threat This Weekend

The next blast of Arctic air surges south down the Plains, across the Great Lakes and through the Southeast and East Friday through Saturday. This could be longest duration of cold in several decades. Forecast models are being closely monitored for potential of another significant winter storm to impact the eastern United States this coming weekend. Confidence in coastal impacts has increased. Read More >

Hazardous Weather Conditions

Current conditions at

St Marys County Airport (K2W6)

Lat: 38.32°NLon: 76.55°WElev: 144ft.

Partly Cloudy

21°F

-6°C

Humidity 69%
Wind Speed Calm
Barometer 30.09 in
Dewpoint 12°F (-11°C)
Visibility 10.00 mi
Last update 28 Jan 6:35 pm EST
Extended Forecast for

2 Miles NNE Port Republic MD

Cold Weather Advisory January 28, 07:00pm until January 29, 11:00am
Click here for hazard details and duration
Cold Weather Advisory

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 10. Wind chill values as low as -2. Calm wind becoming northwest 5 to 9 mph in the evening. Winds could gust as high as 18 mph.

    Low: 10 °F

    Decreasing
    Clouds

  • Thursday

    Thursday: Sunny, with a high near 25. Wind chill values as low as -3. Northwest wind 9 to 14 mph, with gusts as high as 20 mph.

    High: 25 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 9. Wind chill values as low as zero. Northwest wind around 7 mph.

    Low: 9 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 23. Wind chill values as low as -1. Northwest wind around 7 mph.

    High: 23 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A slight chance of snow. Mostly cloudy, with a low around 11. North wind 3 to 8 mph. Chance of precipitation is 20%.

    Low: 11 °F

    Slight Chance
    Snow

  • Saturday

    Saturday: A chance of snow. Mostly cloudy, with a high near 21. Chance of precipitation is 50%.

    High: 21 °F

    Chance Snow

  • Saturday Night

    Saturday Night: Snow likely. Mostly cloudy, with a low around 14. Blustery. Chance of precipitation is 60%.

    Low: 14 °F

    Snow Likely
    and Blustery

  • Sunday

    Sunday: A chance of snow before 1pm. Mostly cloudy, with a high near 26. Blustery. Chance of precipitation is 40%.

    High: 26 °F

    Chance Snow
    and Blustery

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 16.

    Low: 16 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 10. Wind chill values as low as -2. Calm wind becoming northwest 5 to 9 mph in the evening. Winds could gust as high as 18 mph.
Thursday
Sunny, with a high near 25. Wind chill values as low as -3. Northwest wind 9 to 14 mph, with gusts as high as 20 mph.
Thursday Night
Mostly clear, with a low around 9. Wind chill values as low as zero. Northwest wind around 7 mph.
Friday
Mostly sunny, with a high near 23. Wind chill values as low as -1. Northwest wind around 7 mph.
Friday Night
A slight chance of snow. Mostly cloudy, with a low around 11. North wind 3 to 8 mph. Chance of precipitation is 20%.
Saturday
A chance of snow. Mostly cloudy, with a high near 21. Chance of precipitation is 50%.
Saturday Night
Snow likely. Mostly cloudy, with a low around 14. Blustery. Chance of precipitation is 60%.
Sunday
A chance of snow before 1pm. Mostly cloudy, with a high near 26. Blustery. Chance of precipitation is 40%.
Sunday Night
Partly cloudy, with a low around 16.
Monday
Sunny, with a high near 33.
Monday Night
Mostly clear, with a low around 18.
Tuesday
Mostly sunny, with a high near 35.
Tuesday Night
Mostly clear, with a low around 19.
Wednesday
Mostly sunny, with a high near 35.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NNE Port Republic MD
 38.52°N 76.54°W (Elev. 98 ft)
Last Update:
4:52 pm EST Jan 28, 2026
Forecast Valid:
6pm EST Jan 28, 2026-6pm EST Feb 4, 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