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.

Mostly Cloudy

53°F

12°C

Humidity 98%
Wind Speed S 3 mph
Barometer 29.79 in
Dewpoint 52°F (11°C)
Visibility 9.00 mi
Last update 21 Mar 3:55 am EDT
Extended Forecast for

3 Miles NNE Port Republic MD

  • Overnight

    Overnight: A slight chance of showers and thunderstorms before 5am. Mostly cloudy, with a low around 50. Southwest wind around 8 mph. Chance of precipitation is 20%.

    Low: 50 °F

    Slight Chance
    T-storms

  • Saturday

    Saturday: Sunny, with a high near 61. Northwest wind 6 to 8 mph becoming northeast in the afternoon.

    High: 61 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 45. Calm wind becoming southeast around 6 mph in the evening.

    Low: 45 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 76. South wind 6 to 9 mph.

    High: 76 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: A slight chance of rain, then a chance of rain and thunderstorms after 2am. Mostly cloudy, with a low around 51. South wind around 8 mph becoming west after midnight. Chance of precipitation is 50%.

    Low: 51 °F

    Slight Chance
    Rain then
    Chance Rain

  • Monday

    Monday: A chance of rain and thunderstorms before 8am, then a chance of rain between 8am and 2pm. Partly sunny, with a high near 58. Chance of precipitation is 30%.

    High: 58 °F

    Chance Rain

  • Monday Night

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

    Low: 34 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 48.

    High: 48 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 37.

    Low: 37 °F

    Partly Cloudy

Detailed Forecast

Overnight
A slight chance of showers and thunderstorms before 5am. Mostly cloudy, with a low around 50. Southwest wind around 8 mph. Chance of precipitation is 20%.
Saturday
Sunny, with a high near 61. Northwest wind 6 to 8 mph becoming northeast in the afternoon.
Saturday Night
Partly cloudy, with a low around 45. Calm wind becoming southeast around 6 mph in the evening.
Sunday
Partly sunny, with a high near 76. South wind 6 to 9 mph.
Sunday Night
A slight chance of rain, then a chance of rain and thunderstorms after 2am. Mostly cloudy, with a low around 51. South wind around 8 mph becoming west after midnight. Chance of precipitation is 50%.
Monday
A chance of rain and thunderstorms before 8am, then a chance of rain between 8am and 2pm. Partly sunny, with a high near 58. Chance of precipitation is 30%.
Monday Night
Mostly clear, with a low around 34.
Tuesday
Sunny, with a high near 48.
Tuesday Night
Partly cloudy, with a low around 37.
Wednesday
Partly sunny, with a high near 58.
Wednesday Night
Mostly cloudy, with a low around 42.
Thursday
Partly sunny, with a high near 62.
Thursday Night
A chance of rain. Mostly cloudy, with a low around 48. Chance of precipitation is 40%.
Friday
A chance of rain. Partly sunny, with a high near 60. Chance of precipitation is 30%.
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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:
2:22 am EDT Mar 21, 2026
Forecast Valid:
4am EDT Mar 21, 2026-6pm EDT Mar 27, 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