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

78°F

26°C

Humidity 57%
Wind Speed Calm
Barometer 30.05 in
Dewpoint 62°F (17°C)
Visibility NA
Heat Index80°F (27°C)
Last update 25 Jul 3:15 pm EDT
Extended Forecast for

3 Miles SW Port Republic MD

  • Tonight

    Tonight: Partly cloudy, with a low around 66. East wind around 6 mph becoming calm in the evening.

    Low: 66 °F

    Partly Cloudy

  • Sunday

    Sunday: Isolated showers and thunderstorms after 2pm. Mostly sunny, with a high near 85. Northeast wind 3 to 7 mph. Chance of precipitation is 20%.

    High: 85 °F

    Mostly Sunny
    then Isolated
    T-storms

  • Sunday Night

    Sunday Night: Isolated showers and thunderstorms, then scattered showers after 2am. Partly cloudy, with a low around 67. Southeast wind 5 to 7 mph becoming south after midnight. Chance of precipitation is 40%.

    Low: 67 °F

    Isolated
    T-storms then
    Scattered
    Showers

  • Monday

    Monday: Scattered showers before 8am, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 87. Light south wind increasing to 5 to 9 mph in the afternoon. Chance of precipitation is 40%.

    High: 87 °F

    Scattered
    Showers then
    Chance
    T-storms

  • Monday Night

    Monday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 70. South wind around 8 mph. Chance of precipitation is 50%.

    Low: 70 °F

    Chance
    T-storms then
    Chance
    Showers

  • Tuesday

    Tuesday: A chance of showers before 8am, then a chance of showers and thunderstorms between 8am and 2pm, then showers and possibly a thunderstorm after 2pm. High near 87. Chance of precipitation is 80%.

    High: 87 °F

    Chance
    Showers 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 chance of showers after 2am. Low around 69. Chance of precipitation is 80%.

    Low: 69 °F

    Showers then
    Chance
    T-storms

  • Wednesday

    Wednesday: A slight chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 85. Chance of precipitation is 20%.

    High: 85 °F

    Slight Chance
    Showers then
    Slight Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A slight chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 68. Chance of precipitation is 20%.

    Low: 68 °F

    Slight Chance
    T-storms

Detailed Forecast

Tonight
Partly cloudy, with a low around 66. East wind around 6 mph becoming calm in the evening.
Sunday
Isolated showers and thunderstorms after 2pm. Mostly sunny, with a high near 85. Northeast wind 3 to 7 mph. Chance of precipitation is 20%.
Sunday Night
Isolated showers and thunderstorms, then scattered showers after 2am. Partly cloudy, with a low around 67. Southeast wind 5 to 7 mph becoming south after midnight. Chance of precipitation is 40%.
Monday
Scattered showers before 8am, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 87. Light south wind increasing to 5 to 9 mph in the afternoon. Chance of precipitation is 40%.
Monday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 70. South wind around 8 mph. Chance of precipitation is 50%.
Tuesday
A chance of showers before 8am, then a chance of showers and thunderstorms between 8am and 2pm, then showers and possibly a thunderstorm after 2pm. High near 87. Chance of precipitation is 80%.
Tuesday Night
Showers and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am, then a chance of showers after 2am. Low around 69. Chance of precipitation is 80%.
Wednesday
A slight chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 85. Chance of precipitation is 20%.
Wednesday Night
A slight chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 68. Chance of precipitation is 20%.
Thursday
Mostly sunny, with a high near 84.
Thursday Night
Mostly clear, with a low around 68.
Friday
Sunny, with a high near 86.
Friday Night
Partly cloudy, with a low around 70.
Saturday
A chance of showers and thunderstorms. Mostly sunny, with a high near 87. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SW Port Republic MD
 38.46°N 76.58°W (Elev. 98 ft)
Last Update:
2:23 pm EDT Jul 25, 2026
Forecast Valid:
3pm EDT Jul 25, 2026-6pm EDT Aug 1, 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