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

58°F

14°C

Humidity 51%
Wind Speed Calm
Barometer 29.91 in
Dewpoint 40°F (4°C)
Visibility 9.00 mi
Last update 7 Jan 4:55 pm EST
Extended Forecast for

3 Miles SW Port Republic MD

  • Tonight

    Tonight: Mostly clear, with a low around 35. Northwest wind 5 to 7 mph becoming calm in the evening.

    Low: 35 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 51. Light and variable wind.

    High: 51 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 38. Southeast wind 3 to 6 mph.

    Low: 38 °F

    Mostly Cloudy

  • Friday

    Friday: A slight chance of rain after 1pm. Mostly cloudy, with a high near 60. South wind 6 to 10 mph. Chance of precipitation is 20%.

    High: 60 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Friday Night

    Friday Night: Rain likely, mainly after 1am. Cloudy, with a low around 52. South wind around 8 mph. Chance of precipitation is 60%.

    Low: 52 °F

    Rain Likely

  • Saturday

    Saturday: Rain, with thunderstorms also possible after 1pm. High near 64. Chance of precipitation is 90%.

    High: 64 °F

    Rain

  • Saturday Night

    Saturday Night: Rain, mainly before 1am. Low around 44. Chance of precipitation is 80%.

    Low: 44 °F

    Rain

  • Sunday

    Sunday: A chance of rain before 1pm. Partly sunny, with a high near 54. Chance of precipitation is 30%.

    High: 54 °F

    Chance Rain

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 29.

    Low: 29 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 35. Northwest wind 5 to 7 mph becoming calm in the evening.
Thursday
Mostly sunny, with a high near 51. Light and variable wind.
Thursday Night
Mostly cloudy, with a low around 38. Southeast wind 3 to 6 mph.
Friday
A slight chance of rain after 1pm. Mostly cloudy, with a high near 60. South wind 6 to 10 mph. Chance of precipitation is 20%.
Friday Night
Rain likely, mainly after 1am. Cloudy, with a low around 52. South wind around 8 mph. Chance of precipitation is 60%.
Saturday
Rain, with thunderstorms also possible after 1pm. High near 64. Chance of precipitation is 90%.
Saturday Night
Rain, mainly before 1am. Low around 44. Chance of precipitation is 80%.
Sunday
A chance of rain before 1pm. Partly sunny, with a high near 54. Chance of precipitation is 30%.
Sunday Night
Mostly clear, with a low around 29.
Monday
Sunny, with a high near 43.
Monday Night
Mostly clear, with a low around 29.
Tuesday
Sunny, with a high near 48.
Tuesday Night
Partly cloudy, with a low around 33.
Wednesday
Mostly cloudy, with a high near 48.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SW Port Republic MD
 38.46°N 76.58°W (Elev. 98 ft)
Last Update:
3:53 pm EST Jan 7, 2026
Forecast Valid:
5pm EST Jan 7, 2026-6pm EST Jan 14, 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