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

71°F

22°C

Humidity 96%
Wind Speed SW 5 mph
Barometer 30.07 in (1018.1 mb)
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Last update 15 Jul 12:53 am EDT
Extended Forecast for

Edgartown MA

  • Overnight

    Overnight: A slight chance of showers between 3am and 5am, then a chance of showers and thunderstorms after 5am. Patchy fog before 3am. Otherwise, mostly cloudy, with a low around 69. Southwest wind around 7 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 69 °F

    Chance
    Showers and
    Patchy Fog

  • Tuesday

    Tuesday: A chance of showers and thunderstorms, mainly before 9am. Patchy fog before 1pm. Otherwise, mostly cloudy, with a high near 81. Southwest wind 7 to 10 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 81 °F

    Chance
    Showers and
    Patchy Fog
    then Patchy
    Fog

  • Tuesday Night

    Tuesday Night: Patchy fog. Otherwise, mostly cloudy, with a low around 69. Southwest wind 6 to 8 mph.

    Low: 69 °F

    Patchy Fog

  • Wednesday

    Wednesday: Patchy fog before 10am. Otherwise, partly sunny, with a high near 83. Southwest wind 6 to 11 mph.

    High: 83 °F

    Patchy Fog
    then Mostly
    Sunny

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms, mainly after 5am. Mostly cloudy, with a low around 71. Southwest wind around 10 mph. Chance of precipitation is 30%.

    Low: 71 °F

    Mostly Cloudy
    then Chance
    Showers

  • Thursday

    Thursday: A chance of showers and thunderstorms before 11am, then a slight chance of showers between 11am and 2pm, then a slight chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 83. Southwest wind 11 to 15 mph. Chance of precipitation is 30%.

    High: 83 °F

    Chance
    Showers then
    Slight Chance
    T-storms

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 72. Southwest wind 11 to 13 mph.

    Low: 72 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 86. West wind 9 to 11 mph.

    High: 86 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 68. North wind around 7 mph.

    Low: 68 °F

    Mostly Cloudy

Detailed Forecast

Overnight
A slight chance of showers between 3am and 5am, then a chance of showers and thunderstorms after 5am. Patchy fog before 3am. Otherwise, mostly cloudy, with a low around 69. Southwest wind around 7 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday
A chance of showers and thunderstorms, mainly before 9am. Patchy fog before 1pm. Otherwise, mostly cloudy, with a high near 81. Southwest wind 7 to 10 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
Patchy fog. Otherwise, mostly cloudy, with a low around 69. Southwest wind 6 to 8 mph.
Wednesday
Patchy fog before 10am. Otherwise, partly sunny, with a high near 83. Southwest wind 6 to 11 mph.
Wednesday Night
A chance of showers and thunderstorms, mainly after 5am. Mostly cloudy, with a low around 71. Southwest wind around 10 mph. Chance of precipitation is 30%.
Thursday
A chance of showers and thunderstorms before 11am, then a slight chance of showers between 11am and 2pm, then a slight chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 83. Southwest wind 11 to 15 mph. Chance of precipitation is 30%.
Thursday Night
Partly cloudy, with a low around 72. Southwest wind 11 to 13 mph.
Friday
Mostly sunny, with a high near 86. West wind 9 to 11 mph.
Friday Night
Mostly cloudy, with a low around 68. North wind around 7 mph.
Saturday
Sunny, with a high near 80. Northeast wind 8 to 10 mph.
Saturday Night
Partly cloudy, with a low around 66. Southeast wind around 6 mph becoming southwest after midnight.
Sunday
Partly sunny, with a high near 81. South wind 6 to 11 mph.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 68. South wind around 9 mph. Chance of precipitation is 40%.
Monday
A chance of showers. Mostly sunny, with a high near 81. West wind around 11 mph becoming south in the afternoon. 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:
12:32 am EDT Jul 15, 2025
Forecast Valid:
1am EDT Jul 15, 2025-6pm EDT Jul 21, 2025
 
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