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.

A Few Clouds

41°F

5°C

Humidity 82%
Wind Speed S 5 mph
Barometer 30.41 in
Dewpoint 36°F (2°C)
Visibility 9.00 mi
Wind Chill38°F (3°C)
Last update 25 Mar 8:35 am EDT
Extended Forecast for

Port Republic MD

  • Today

    Today: Partly sunny, with a high near 56. Light south wind becoming southeast 5 to 9 mph in the morning.

    High: 56 °F

    Partly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 46. South wind around 8 mph.

    Low: 46 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 72. Southwest wind 9 to 11 mph, with gusts as high as 18 mph.

    High: 72 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A chance of rain after 2am. Increasing clouds, with a low around 53. Southwest wind around 10 mph, with gusts as high as 21 mph. Chance of precipitation is 40%.

    Low: 53 °F

    Partly Cloudy
    then Chance
    Rain

  • Friday

    Friday: Rain likely, mainly after 8am. Mostly cloudy, with a high near 65. West wind 10 to 13 mph becoming north in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 70%.

    High: 65 °F

    Rain Likely

  • Friday Night

    Friday Night: A chance of rain before 2am. Mostly cloudy, with a low around 34. Chance of precipitation is 30%.

    Low: 34 °F

    Chance Rain

  • Saturday

    Saturday: Sunny, with a high near 49.

    High: 49 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 34.

    Low: 34 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 56.

    High: 56 °F

    Sunny

Detailed Forecast

Today
Partly sunny, with a high near 56. Light south wind becoming southeast 5 to 9 mph in the morning.
Tonight
Mostly cloudy, with a low around 46. South wind around 8 mph.
Thursday
Mostly sunny, with a high near 72. Southwest wind 9 to 11 mph, with gusts as high as 18 mph.
Thursday Night
A chance of rain after 2am. Increasing clouds, with a low around 53. Southwest wind around 10 mph, with gusts as high as 21 mph. Chance of precipitation is 40%.
Friday
Rain likely, mainly after 8am. Mostly cloudy, with a high near 65. West wind 10 to 13 mph becoming north in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 70%.
Friday Night
A chance of rain before 2am. Mostly cloudy, with a low around 34. Chance of precipitation is 30%.
Saturday
Sunny, with a high near 49.
Saturday Night
Mostly clear, with a low around 34.
Sunday
Sunny, with a high near 56.
Sunday Night
Mostly clear, with a low around 41.
Monday
Mostly sunny, with a high near 63.
Monday Night
Partly cloudy, with a low around 49.
Tuesday
Mostly sunny, with a high near 71.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Port Republic MD
 38.48°N 76.55°W (Elev. 98 ft)
Last Update:
7:55 am EDT Mar 25, 2026
Forecast Valid:
8am EDT Mar 25, 2026-6pm EDT Mar 31, 2026
 
Forecast Discussion
 
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Additional Resources

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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