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

65°F

18°C

Humidity 81%
Wind Speed Calm
Barometer 30.03 in
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 25 Aug 4:55 am EDT
Extended Forecast for

Cobb Island MD

  • Today

    Today: Sunny, with a high near 83. Northwest wind 3 to 6 mph.

    High: 83 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 67. Calm wind.

    Low: 67 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 85. Calm wind becoming south 5 to 8 mph in the afternoon.

    High: 85 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms after 2am. Partly cloudy, with a low around 72. South wind 8 to 10 mph. Chance of precipitation is 30%.

    Low: 72 °F

    Partly Cloudy
    then Chance
    Showers

  • Thursday

    Thursday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 84. South wind around 8 mph. Chance of precipitation is 60%.

    High: 84 °F

    Chance
    Showers then
    Showers
    Likely

  • Thursday Night

    Thursday Night: Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am. Mostly cloudy, with a low around 71. Chance of precipitation is 60%.

    Low: 71 °F

    Showers
    Likely

  • Friday

    Friday: A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 84. Chance of precipitation is 50%.

    High: 84 °F

    Partly Sunny
    then Chance
    T-storms

  • Friday Night

    Friday Night: A chance of showers and thunderstorms before 2am, then a slight chance of showers. Mostly cloudy, with a low around 70. Chance of precipitation is 30%.

    Low: 70 °F

    Chance
    T-storms then
    Chance
    Showers

  • Saturday

    Saturday: A slight chance of showers before 8am, then a slight chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 82. Chance of precipitation is 20%.

    High: 82 °F

    Partly Sunny
    then Slight
    Chance
    T-storms

Detailed Forecast

Today
Sunny, with a high near 83. Northwest wind 3 to 6 mph.
Tonight
Partly cloudy, with a low around 67. Calm wind.
Wednesday
Mostly sunny, with a high near 85. Calm wind becoming south 5 to 8 mph in the afternoon.
Wednesday Night
A chance of showers and thunderstorms after 2am. Partly cloudy, with a low around 72. South wind 8 to 10 mph. Chance of precipitation is 30%.
Thursday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 84. South wind around 8 mph. Chance of precipitation is 60%.
Thursday Night
Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am. Mostly cloudy, with a low around 71. Chance of precipitation is 60%.
Friday
A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 84. Chance of precipitation is 50%.
Friday Night
A chance of showers and thunderstorms before 2am, then a slight chance of showers. Mostly cloudy, with a low around 70. Chance of precipitation is 30%.
Saturday
A slight chance of showers before 8am, then a slight chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 82. Chance of precipitation is 20%.
Saturday Night
Partly cloudy, with a low around 70.
Sunday
Mostly sunny, with a high near 84.
Sunday Night
Partly cloudy, with a low around 72.
Monday
Sunny, with a high near 85.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Cobb Island MD
 38.36°N 76.89°W (Elev. 98 ft)
Last Update:
4:53 am EDT Aug 25, 2026
Forecast Valid:
5am EDT Aug 25, 2026-6pm EDT Aug 31, 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