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.

Mostly Cloudy

48°F

9°C

Humidity 83%
Wind Speed N 10 G 21 mph
Barometer 29.83 in (1009.9 mb)
Dewpoint 43°F (6°C)
Visibility 9.00 mi
Wind Chill44°F (7°C)
Last update 21 Mar 10:53 am EDT
Extended Forecast for

Chilmark MA

  • Today

    Today: Cloudy, then gradually becoming mostly sunny, with a high near 48. North wind 10 to 13 mph.

    High: 48 °F

    Decreasing
    Clouds

  • Tonight

    Tonight: Mostly cloudy, with a low around 36. Calm wind becoming southeast around 6 mph after midnight.

    Low: 36 °F

    Mostly Cloudy

  • Sunday

    Sunday: Rain, mainly after 1pm. High near 49. South wind 15 to 18 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    High: 49 °F

    Chance Rain
    then Rain

  • Sunday Night

    Sunday Night: Rain. Low around 37. West wind 8 to 11 mph becoming north after midnight. Winds could gust as high as 22 mph. Chance of precipitation is 80%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 37 °F

    Rain

  • Monday

    Monday: Showers likely, mainly before 9am. Cloudy, with a high near 41. North wind 14 to 16 mph. Chance of precipitation is 60%.

    High: 41 °F

    Showers
    Likely then
    Chance
    Showers

  • Monday Night

    Monday Night: A slight chance of rain and snow showers before 8pm, then a slight chance of snow showers between 8pm and 3am. Mostly cloudy, with a low around 31. North wind 11 to 14 mph. Chance of precipitation is 20%.

    Low: 31 °F

    Slight Chance
    Rain/Snow
    then Slight
    Chance Snow
    Showers

  • Tuesday

    Tuesday: Sunny, with a high near 40. North wind 7 to 11 mph becoming west in the afternoon.

    High: 40 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 33. Southwest wind 10 to 14 mph.

    Low: 33 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 45. Southwest wind 14 to 16 mph.

    High: 45 °F

    Partly Sunny

Detailed Forecast

Today
Cloudy, then gradually becoming mostly sunny, with a high near 48. North wind 10 to 13 mph.
Tonight
Mostly cloudy, with a low around 36. Calm wind becoming southeast around 6 mph after midnight.
Sunday
Rain, mainly after 1pm. High near 49. South wind 15 to 18 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Sunday Night
Rain. Low around 37. West wind 8 to 11 mph becoming north after midnight. Winds could gust as high as 22 mph. Chance of precipitation is 80%. New precipitation amounts between a half and three quarters of an inch possible.
Monday
Showers likely, mainly before 9am. Cloudy, with a high near 41. North wind 14 to 16 mph. Chance of precipitation is 60%.
Monday Night
A slight chance of rain and snow showers before 8pm, then a slight chance of snow showers between 8pm and 3am. Mostly cloudy, with a low around 31. North wind 11 to 14 mph. Chance of precipitation is 20%.
Tuesday
Sunny, with a high near 40. North wind 7 to 11 mph becoming west in the afternoon.
Tuesday Night
Mostly cloudy, with a low around 33. Southwest wind 10 to 14 mph.
Wednesday
Partly sunny, with a high near 45. Southwest wind 14 to 16 mph.
Wednesday Night
Partly cloudy, with a low around 33. West wind 11 to 13 mph becoming north after midnight.
Thursday
Partly sunny, with a high near 45. South wind 11 to 13 mph.
Thursday Night
A chance of rain. Mostly cloudy, with a low around 36. Southwest wind around 15 mph. Chance of precipitation is 40%.
Friday
A chance of rain. Partly sunny, with a high near 46. West wind around 15 mph. Chance of precipitation is 40%.
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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:
10:46 am EDT Mar 21, 2026
Forecast Valid:
11am EDT Mar 21, 2026-6pm EDT Mar 27, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation