National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Marthas Vineyard Airport (KMVY)

Lat: 41.39°NLon: 70.62°WElev: 59ft.

Overcast

69°F

21°C

Humidity 90%
Wind Speed NE 17 G 28 mph
Barometer 30.02 in (1016.5 mb)
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Last update 21 Aug 9:53 am EDT
Extended Forecast for

Edgartown MA

  • Today

    Today: Showers and possibly a thunderstorm before 11am, then showers likely. Patchy fog before 1pm. High near 72. Breezy, with a northeast wind 17 to 20 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 72 °F

    Showers and
    Patchy Fog

  • Tonight

    Tonight: A chance of showers. Patchy fog. Otherwise, cloudy, with a low around 65. Northeast wind 11 to 14 mph. Chance of precipitation is 40%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 65 °F

    Chance
    Showers and
    Patchy Fog

  • Saturday

    Saturday: A slight chance of showers before 3pm, then a slight chance of showers after 5pm. Patchy fog before 10am. Otherwise, mostly cloudy, with a high near 73. Northeast wind 8 to 10 mph. Chance of precipitation is 20%.

    High: 73 °F

    Slight Chance
    Showers and
    Patchy Fog

  • Saturday Night

    Saturday Night: Showers likely, then showers and possibly a thunderstorm after 1am. Patchy fog before 8pm. Low around 66. Southeast wind 3 to 5 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 66 °F

    Showers and
    Patchy Fog

  • Sunday

    Sunday: Showers likely and possibly a thunderstorm before 1pm, then a slight chance of showers between 1pm and 2pm. Mostly cloudy, with a high near 77. South wind 7 to 10 mph. Chance of precipitation is 60%.

    High: 77 °F

    Showers
    Likely then
    Chance
    Showers

  • Sunday Night

    Sunday Night: A chance of showers, mainly between 8pm and 2am. Mostly cloudy, with a low around 69. Southwest wind 6 to 8 mph. Chance of precipitation is 30%.

    Low: 69 °F

    Chance
    Showers

  • Monday

    Monday: Sunny, with a high near 78. Southwest wind 8 to 11 mph.

    High: 78 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 65. Southwest wind 8 to 10 mph.

    Low: 65 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 76. Southwest wind 9 to 15 mph.

    High: 76 °F

    Sunny

Detailed Forecast

Today
Showers and possibly a thunderstorm before 11am, then showers likely. Patchy fog before 1pm. High near 72. Breezy, with a northeast wind 17 to 20 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight
A chance of showers. Patchy fog. Otherwise, cloudy, with a low around 65. Northeast wind 11 to 14 mph. Chance of precipitation is 40%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday
A slight chance of showers before 3pm, then a slight chance of showers after 5pm. Patchy fog before 10am. Otherwise, mostly cloudy, with a high near 73. Northeast wind 8 to 10 mph. Chance of precipitation is 20%.
Saturday Night
Showers likely, then showers and possibly a thunderstorm after 1am. Patchy fog before 8pm. Low around 66. Southeast wind 3 to 5 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Sunday
Showers likely and possibly a thunderstorm before 1pm, then a slight chance of showers between 1pm and 2pm. Mostly cloudy, with a high near 77. South wind 7 to 10 mph. Chance of precipitation is 60%.
Sunday Night
A chance of showers, mainly between 8pm and 2am. Mostly cloudy, with a low around 69. Southwest wind 6 to 8 mph. Chance of precipitation is 30%.
Monday
Sunny, with a high near 78. Southwest wind 8 to 11 mph.
Monday Night
Mostly clear, with a low around 65. Southwest wind 8 to 10 mph.
Tuesday
Sunny, with a high near 76. Southwest wind 9 to 15 mph.
Tuesday Night
Mostly clear, with a low around 66. Southwest wind 7 to 11 mph.
Wednesday
Sunny, with a high near 78. West wind 6 to 11 mph becoming southwest in the afternoon.
Wednesday Night
Partly cloudy, with a low around 67. Southwest wind 7 to 9 mph.
Thursday
A chance of showers. Partly sunny, with a high near 78. South wind 8 to 13 mph. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Edgartown MA
 41.38°N 70.53°W (Elev. 30 ft)
Last Update:
3:49 am EDT Aug 21, 2026
Forecast Valid:
10am EDT Aug 21, 2026-6pm EDT Aug 27, 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