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

St Marys County Airport (K2W6)

Lat: 38.32°NLon: 76.55°WElev: 144ft.

Fair

41°F

5°C

Humidity 74%
Wind Speed W 6 mph
Barometer 29.59 in
Dewpoint 33°F (1°C)
Visibility 10.00 mi
Wind Chill37°F (3°C)
Last update 11 Dec 2:35 am EST
Extended Forecast for

Port Republic MD

  • Overnight

    Overnight: Mostly clear, with a low around 33. Northwest wind around 15 mph, with gusts as high as 30 mph.

    Low: 33 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 40. Northwest wind 13 to 17 mph, with gusts as high as 29 mph.

    High: 40 °F

    Sunny

  • Thursday Night

    Thursday Night: Increasing clouds, with a low around 26. West wind around 7 mph.

    Low: 26 °F

    Increasing
    Clouds

  • Friday

    Friday: A slight chance of snow after 1pm. Partly sunny, with a high near 39. Southwest wind around 6 mph. Chance of precipitation is 20%.

    High: 39 °F

    Mostly Cloudy
    then Slight
    Chance Snow

  • Friday Night

    Friday Night: A slight chance of snow before 1am. Mostly cloudy, with a low around 28. Light southwest wind. Chance of precipitation is 20%.

    Low: 28 °F

    Slight Chance
    Snow

  • Saturday

    Saturday: Partly sunny, with a high near 45.

    High: 45 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Snow likely after 1am. Cloudy, with a low around 26. Chance of precipitation is 70%.

    Low: 26 °F

    Mostly Cloudy
    then Snow
    Likely

  • Sunday

    Sunday: Snow likely before 1pm. Partly sunny, with a high near 35. Chance of precipitation is 60%.

    High: 35 °F

    Snow Likely

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 18.

    Low: 18 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly clear, with a low around 33. Northwest wind around 15 mph, with gusts as high as 30 mph.
Thursday
Sunny, with a high near 40. Northwest wind 13 to 17 mph, with gusts as high as 29 mph.
Thursday Night
Increasing clouds, with a low around 26. West wind around 7 mph.
Friday
A slight chance of snow after 1pm. Partly sunny, with a high near 39. Southwest wind around 6 mph. Chance of precipitation is 20%.
Friday Night
A slight chance of snow before 1am. Mostly cloudy, with a low around 28. Light southwest wind. Chance of precipitation is 20%.
Saturday
Partly sunny, with a high near 45.
Saturday Night
Snow likely after 1am. Cloudy, with a low around 26. Chance of precipitation is 70%.
Sunday
Snow likely before 1pm. Partly sunny, with a high near 35. Chance of precipitation is 60%.
Sunday Night
Mostly clear, with a low around 18.
Monday
Sunny, with a high near 34.
Monday Night
Partly cloudy, with a low around 22.
Tuesday
Mostly sunny, with a high near 39.
Tuesday Night
Partly cloudy, with a low around 26.
Wednesday
Mostly sunny, with a high near 46.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Port Republic MD
 38.5°N 76.55°W (Elev. 148 ft)
Last Update:
12:53 am EST Dec 11, 2025
Forecast Valid:
2am EST Dec 11, 2025-6pm EST Dec 17, 2025
 
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