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

82°F

28°C

Humidity 56%
Wind Speed SW 7 mph
Barometer 29.87 in
Dewpoint 65°F (18°C)
Visibility NA
Heat Index84°F (29°C)
Last update 26 Jul 5:15 pm EDT
Extended Forecast for

Port Republic MD

  • Tonight

    Tonight: Scattered showers and thunderstorms between 8pm and 2am. Partly cloudy, with a low around 68. Southeast wind 5 to 7 mph becoming southwest after midnight. Chance of precipitation is 30%.

    Low: 68 °F

    Scattered
    Showers

  • Monday

    Monday: Scattered showers and thunderstorms after 2pm. Mostly sunny, with a high near 85. Calm wind becoming southeast around 6 mph in the afternoon. Chance of precipitation is 50%.

    High: 85 °F

    Mostly Sunny
    then
    Scattered
    T-storms

  • Monday Night

    Monday Night: Scattered showers and thunderstorms before 8pm, then a chance of showers and thunderstorms after 2am. Partly cloudy, with a low around 71. South wind around 7 mph. Chance of precipitation is 30%.

    Low: 71 °F

    Scattered
    T-storms then
    Chance
    Showers

  • Tuesday

    Tuesday: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 8am. High near 84. South wind 8 to 13 mph, with gusts as high as 18 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    High: 84 °F

    Showers
    Likely then
    Showers

  • Tuesday Night

    Tuesday Night: Showers and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am, then a slight chance of showers after 2am. Low around 70. South wind around 9 mph becoming northwest after midnight. Chance of precipitation is 80%.

    Low: 70 °F

    Showers then
    Chance
    Showers

  • Wednesday

    Wednesday: A slight chance of showers before 8am, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 85. Chance of precipitation is 30%.

    High: 85 °F

    Partly Sunny
    then Chance
    Showers

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 70. Chance of precipitation is 30%.

    Low: 70 °F

    Chance
    Showers then
    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 83.

    High: 83 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 70.

    Low: 70 °F

    Partly Cloudy

Detailed Forecast

Tonight
Scattered showers and thunderstorms between 8pm and 2am. Partly cloudy, with a low around 68. Southeast wind 5 to 7 mph becoming southwest after midnight. Chance of precipitation is 30%.
Monday
Scattered showers and thunderstorms after 2pm. Mostly sunny, with a high near 85. Calm wind becoming southeast around 6 mph in the afternoon. Chance of precipitation is 50%.
Monday Night
Scattered showers and thunderstorms before 8pm, then a chance of showers and thunderstorms after 2am. Partly cloudy, with a low around 71. South wind around 7 mph. Chance of precipitation is 30%.
Tuesday
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 8am. High near 84. South wind 8 to 13 mph, with gusts as high as 18 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Tuesday Night
Showers and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am, then a slight chance of showers after 2am. Low around 70. South wind around 9 mph becoming northwest after midnight. Chance of precipitation is 80%.
Wednesday
A slight chance of showers before 8am, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 85. Chance of precipitation is 30%.
Wednesday Night
A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 70. Chance of precipitation is 30%.
Thursday
Mostly sunny, with a high near 83.
Thursday Night
Partly cloudy, with a low around 70.
Friday
Sunny, with a high near 83.
Friday Night
Partly cloudy, with a low around 72.
Saturday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 84. Chance of precipitation is 20%.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 73. Chance of precipitation is 30%.
Sunday
A chance of showers and thunderstorms. Partly sunny, with a high near 83. Chance of precipitation is 50%.
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ABOUT THIS FORECAST

 
Point Forecast:
Port Republic MD
 38.5°N 76.52°W (Elev. 98 ft)
Last Update:
4:54 pm EDT Jul 26, 2026
Forecast Valid:
5pm EDT Jul 26, 2026-6pm EDT Aug 2, 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