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.

Fair

75°F

24°C

Humidity 52%
Wind Speed W 6 mph
Barometer 30.15 in (1021.0 mb)
Dewpoint 56°F (13°C)
Visibility 10.00 mi
Last update 15 Aug 11:53 am EDT
Extended Forecast for

Chilmark MA

  • This Afternoon

    This Afternoon: Sunny, with a high near 80. North wind 3 to 7 mph.

    High: 80 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 55. Light and variable wind.

    Low: 55 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 79. Light and variable wind becoming south 6 to 11 mph in the morning.

    High: 79 °F

    Sunny

  • Sunday Night

    Sunday Night: A chance of showers, mainly after 1am. Increasing clouds, with a low around 67. South wind 10 to 14 mph. Chance of precipitation is 50%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 67 °F

    Mostly Cloudy
    then Chance
    Showers

  • Monday

    Monday: Showers likely, mainly before 2pm. Mostly cloudy, with a high near 78. Breezy, with a southeast wind 14 to 20 mph. Chance of precipitation is 70%.

    High: 78 °F

    Showers
    Likely and
    Breezy

  • Monday Night

    Monday Night: Partly cloudy, with a low around 66. North wind around 9 mph.

    Low: 66 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 78. North wind 6 to 9 mph.

    High: 78 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 67. South wind around 6 mph becoming light and variable.

    Low: 67 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 81. South wind 5 to 10 mph.

    High: 81 °F

    Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 80. North wind 3 to 7 mph.
Tonight
Mostly clear, with a low around 55. Light and variable wind.
Sunday
Sunny, with a high near 79. Light and variable wind becoming south 6 to 11 mph in the morning.
Sunday Night
A chance of showers, mainly after 1am. Increasing clouds, with a low around 67. South wind 10 to 14 mph. Chance of precipitation is 50%. New precipitation amounts between a quarter and half of an inch possible.
Monday
Showers likely, mainly before 2pm. Mostly cloudy, with a high near 78. Breezy, with a southeast wind 14 to 20 mph. Chance of precipitation is 70%.
Monday Night
Partly cloudy, with a low around 66. North wind around 9 mph.
Tuesday
Mostly sunny, with a high near 78. North wind 6 to 9 mph.
Tuesday Night
Mostly clear, with a low around 67. South wind around 6 mph becoming light and variable.
Wednesday
Sunny, with a high near 81. South wind 5 to 10 mph.
Wednesday Night
Mostly clear, with a low around 70. South wind around 10 mph.
Thursday
A chance of showers. Partly sunny, with a high near 82. Southwest wind 10 to 14 mph. Chance of precipitation is 30%.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 66. West wind around 10 mph becoming north after midnight. Chance of precipitation is 40%.
Friday
Mostly sunny, with a high near 78. North wind 11 to 13 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Chilmark MA
 41.34°N 70.75°W (Elev. 79 ft)
Last Update:
6:32 am EDT Aug 15, 2026
Forecast Valid:
12pm EDT Aug 15, 2026-6pm EDT Aug 21, 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