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

30°F

-1°C

Humidity 100%
Wind Speed Calm
Barometer 30.14 in
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Last update 13 Mar 1:35 am EDT
Extended Forecast for

3 Miles NNE Port Republic MD

  • Overnight

    Overnight: Mostly clear, with a low around 30. West wind 3 to 5 mph.

    Low: 30 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 53. Breezy, with a south wind 6 to 11 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 33 mph.

    High: 53 °F

    Sunny then
    Mostly Sunny
    and Breezy

  • Friday Night

    Friday Night: Mostly clear, with a low around 42. Southwest wind 10 to 16 mph, with gusts as high as 28 mph.

    Low: 42 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 56. Northwest wind 8 to 10 mph.

    High: 56 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 41. Calm wind becoming east around 5 mph after midnight.

    Low: 41 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 59.

    High: 59 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Showers. Low around 51. Chance of precipitation is 80%.

    Low: 51 °F

    Showers

  • Monday

    Monday: Showers, with thunderstorms also possible after 2pm. High near 68. Chance of precipitation is 100%.

    High: 68 °F

    Showers

  • Monday Night

    Monday Night: Showers and possibly a thunderstorm before 8pm, then a chance of showers between 8pm and 2am. Low around 32. Chance of precipitation is 80%.

    Low: 32 °F

    Showers then
    Chance
    Showers

Detailed Forecast

Overnight
Mostly clear, with a low around 30. West wind 3 to 5 mph.
Friday
Mostly sunny, with a high near 53. Breezy, with a south wind 6 to 11 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 33 mph.
Friday Night
Mostly clear, with a low around 42. Southwest wind 10 to 16 mph, with gusts as high as 28 mph.
Saturday
Mostly sunny, with a high near 56. Northwest wind 8 to 10 mph.
Saturday Night
Mostly cloudy, with a low around 41. Calm wind becoming east around 5 mph after midnight.
Sunday
Partly sunny, with a high near 59.
Sunday Night
Showers. Low around 51. Chance of precipitation is 80%.
Monday
Showers, with thunderstorms also possible after 2pm. High near 68. Chance of precipitation is 100%.
Monday Night
Showers and possibly a thunderstorm before 8pm, then a chance of showers between 8pm and 2am. Low around 32. Chance of precipitation is 80%.
Tuesday
Mostly sunny, with a high near 42.
Tuesday Night
Partly cloudy, with a low around 26.
Wednesday
Sunny, with a high near 42.
Wednesday Night
Partly cloudy, with a low around 31.
Thursday
Partly sunny, with a high near 49.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NNE Port Republic MD
 38.52°N 76.54°W (Elev. 98 ft)
Last Update:
10:53 pm EDT Mar 12, 2026
Forecast Valid:
1am EDT Mar 13, 2026-6pm EDT Mar 19, 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