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 and Breezy

43°F

6°C

Humidity 76%
Wind Speed S 21 G 30 mph
Barometer 29.89 in (1012.1 mb)
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Wind Chill34°F (1°C)
Last update 20 Mar 5:53 pm EDT
Extended Forecast for

Chilmark MA

  • Tonight

    Tonight: Rain, mainly after 7pm. Patchy fog after 11pm. Low around 38. Southwest wind around 17 mph, with gusts as high as 31 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 38 °F

    Rain and
    Patchy Fog

  • Saturday

    Saturday: A chance of rain before 8am. Patchy fog before 11am. Otherwise, cloudy through mid morning, then gradual clearing, with a high near 48. West wind around 10 mph becoming north in the afternoon. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    High: 48 °F

    Chance Rain
    and Patchy
    Fog then
    Sunny

  • Saturday Night

    Saturday Night: Increasing clouds, with a low around 36. North wind around 6 mph becoming south after midnight.

    Low: 36 °F

    Increasing
    Clouds

  • Sunday

    Sunday: A chance of rain, mainly after 3pm. Mostly cloudy, with a high near 47. South wind 10 to 14 mph. Chance of precipitation is 30%.

    High: 47 °F

    Cloudy then
    Chance Rain

  • Sunday Night

    Sunday Night: Rain likely, mainly after 10pm. Cloudy, with a low around 35. Southwest wind 9 to 11 mph becoming north after midnight. Chance of precipitation is 60%.

    Low: 35 °F

    Rain Likely

  • Monday

    Monday: Rain likely, mainly before 8am. Mostly cloudy, with a high near 42. North wind around 15 mph. Chance of precipitation is 60%.

    High: 42 °F

    Rain Likely

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 29. Northwest wind around 13 mph.

    Low: 29 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 41. Northwest wind 8 to 13 mph.

    High: 41 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 33. Southwest wind 9 to 11 mph.

    Low: 33 °F

    Partly Cloudy

Detailed Forecast

Tonight
Rain, mainly after 7pm. Patchy fog after 11pm. Low around 38. Southwest wind around 17 mph, with gusts as high as 31 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Saturday
A chance of rain before 8am. Patchy fog before 11am. Otherwise, cloudy through mid morning, then gradual clearing, with a high near 48. West wind around 10 mph becoming north in the afternoon. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Saturday Night
Increasing clouds, with a low around 36. North wind around 6 mph becoming south after midnight.
Sunday
A chance of rain, mainly after 3pm. Mostly cloudy, with a high near 47. South wind 10 to 14 mph. Chance of precipitation is 30%.
Sunday Night
Rain likely, mainly after 10pm. Cloudy, with a low around 35. Southwest wind 9 to 11 mph becoming north after midnight. Chance of precipitation is 60%.
Monday
Rain likely, mainly before 8am. Mostly cloudy, with a high near 42. North wind around 15 mph. Chance of precipitation is 60%.
Monday Night
Mostly cloudy, with a low around 29. Northwest wind around 13 mph.
Tuesday
Sunny, with a high near 41. Northwest wind 8 to 13 mph.
Tuesday Night
Partly cloudy, with a low around 33. Southwest wind 9 to 11 mph.
Wednesday
A chance of rain between 9am and 3pm. Mostly cloudy, with a high near 44. Southwest wind around 15 mph. Chance of precipitation is 30%.
Wednesday Night
Partly cloudy, with a low around 31. West wind around 14 mph.
Thursday
Mostly sunny, with a high near 45. North wind around 11 mph becoming southwest in the afternoon.
Thursday Night
A chance of rain. Mostly cloudy, with a low around 35. Southwest wind 14 to 17 mph. Chance of precipitation is 30%.
Friday
A chance of rain. Mostly cloudy, with a high near 47. West wind 14 to 17 mph. Chance of precipitation is 50%.
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ABOUT THIS FORECAST

 
Point Forecast:
Chilmark MA
 41.34°N 70.75°W (Elev. 79 ft)
Last Update:
1:08 pm EDT Mar 20, 2026
Forecast Valid:
6pm EDT Mar 20, 2026-6pm EDT Mar 27, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation