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

42°F

6°C

Humidity 90%
Wind Speed Vrbl 3 mph
Barometer 30.28 in
Dewpoint 40°F (4°C)
Visibility 10.00 mi
Last update 9 Jan 2:55 am EST
Extended Forecast for

Port Republic MD

  • Overnight

    Overnight: Partly cloudy, with a low around 37. South wind around 5 mph.

    Low: 37 °F

    Partly Cloudy

  • Friday

    Friday: A chance of rain, mainly after 5pm. Increasing clouds, with a high near 58. South wind 6 to 9 mph. Chance of precipitation is 30%.

    High: 58 °F

    Partly Sunny
    then Chance
    Rain

  • Friday Night

    Friday Night: Rain likely, mainly before 11pm. Patchy fog before 9pm. Otherwise, cloudy, with a low around 45. Southwest wind around 6 mph becoming light and variable after midnight. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 45 °F

    Rain Likely
    and Patchy
    Fog then
    Chance Rain

  • Saturday

    Saturday: Rain. High near 56. Northeast wind 5 to 7 mph becoming southeast in the afternoon. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

    High: 56 °F

    Rain

  • Saturday Night

    Saturday Night: Rain. Low around 41. Southwest wind around 6 mph becoming northwest after midnight. Chance of precipitation is 90%.

    Low: 41 °F

    Rain

  • Sunday

    Sunday: A chance of rain, mainly before 1pm. Partly sunny, with a high near 49. Chance of precipitation is 30%.

    High: 49 °F

    Chance Rain

  • Sunday Night

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

    Low: 29 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 44.

    High: 44 °F

    Sunny

  • Monday Night

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

    Low: 29 °F

    Mostly Clear

Detailed Forecast

Overnight
Partly cloudy, with a low around 37. South wind around 5 mph.
Friday
A chance of rain, mainly after 5pm. Increasing clouds, with a high near 58. South wind 6 to 9 mph. Chance of precipitation is 30%.
Friday Night
Rain likely, mainly before 11pm. Patchy fog before 9pm. Otherwise, cloudy, with a low around 45. Southwest wind around 6 mph becoming light and variable after midnight. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
Rain. High near 56. Northeast wind 5 to 7 mph becoming southeast in the afternoon. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Saturday Night
Rain. Low around 41. Southwest wind around 6 mph becoming northwest after midnight. Chance of precipitation is 90%.
Sunday
A chance of rain, mainly before 1pm. Partly sunny, with a high near 49. Chance of precipitation is 30%.
Sunday Night
Mostly clear, with a low around 29.
Monday
Sunny, with a high near 44.
Monday Night
Mostly clear, with a low around 29.
Tuesday
Sunny, with a high near 49.
Tuesday Night
Partly cloudy, with a low around 36.
Wednesday
Mostly cloudy, with a high near 50.
Wednesday Night
A chance of rain. Mostly cloudy, with a low around 33. Chance of precipitation is 30%.
Thursday
A chance of rain. Mostly cloudy, with a high near 42. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Port Republic MD
 38.48°N 76.55°W (Elev. 98 ft)
Last Update:
1:56 am EST Jan 9, 2026
Forecast Valid:
3am EST Jan 9, 2026-6pm EST Jan 15, 2026
 
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Additional Resources

Radar & Satellite Image

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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