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

46°F

8°C

Humidity 86%
Wind Speed S 13 mph
Barometer 29.99 in (1015.7 mb)
Dewpoint 42°F (6°C)
Visibility 10.00 mi
Wind Chill40°F (4°C)
Last update 10 Mar 3:53 pm EDT
Extended Forecast for

Chilmark MA

  • Tonight

    Tonight: Patchy fog. Otherwise, mostly cloudy, with a low around 36. Southwest wind 6 to 9 mph.

    Low: 36 °F

    Patchy Fog

  • Wednesday

    Wednesday: Patchy fog before noon. Otherwise, mostly cloudy, with a high near 45. South wind 5 to 9 mph.

    High: 45 °F

    Patchy Fog
    then Mostly
    Cloudy

  • Wednesday Night

    Wednesday Night: A slight chance of rain before 11pm, then a slight chance of rain and thunderstorms between 11pm and 2am, then a chance of rain after 2am. Patchy fog. Otherwise, cloudy, with a low around 40. Breezy, with a south wind 14 to 20 mph. Chance of precipitation is 30%.

    Low: 40 °F

    Chance Rain
    and Patchy
    Fog

  • Thursday

    Thursday: Rain likely, mainly after 4pm. Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 48. West wind 15 to 18 mph, with gusts as high as 28 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 48 °F

    Chance Rain
    and Patchy
    Fog then Rain
    Likely

  • Thursday Night

    Thursday Night: A chance of rain and snow before 7pm, then a chance of snow between 7pm and 8pm. Partly cloudy, with a low around 30. West wind around 15 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.

    Low: 30 °F

    Chance
    Rain/Snow
    then Mostly
    Clear

  • Friday

    Friday: Mostly sunny, with a high near 44. West wind 9 to 14 mph becoming southwest in the afternoon.

    High: 44 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A chance of rain after 11pm. Mostly cloudy, with a low around 35. Breezy, with a south wind 16 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 30%.

    Low: 35 °F

    Chance Rain
    and Breezy

  • Saturday

    Saturday: Sunny, with a high near 44. West wind around 18 mph, with gusts as high as 28 mph.

    High: 44 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 31. West wind 9 to 11 mph.

    Low: 31 °F

    Partly Cloudy

Detailed Forecast

Tonight
Patchy fog. Otherwise, mostly cloudy, with a low around 36. Southwest wind 6 to 9 mph.
Wednesday
Patchy fog before noon. Otherwise, mostly cloudy, with a high near 45. South wind 5 to 9 mph.
Wednesday Night
A slight chance of rain before 11pm, then a slight chance of rain and thunderstorms between 11pm and 2am, then a chance of rain after 2am. Patchy fog. Otherwise, cloudy, with a low around 40. Breezy, with a south wind 14 to 20 mph. Chance of precipitation is 30%.
Thursday
Rain likely, mainly after 4pm. Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 48. West wind 15 to 18 mph, with gusts as high as 28 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
A chance of rain and snow before 7pm, then a chance of snow between 7pm and 8pm. Partly cloudy, with a low around 30. West wind around 15 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.
Friday
Mostly sunny, with a high near 44. West wind 9 to 14 mph becoming southwest in the afternoon.
Friday Night
A chance of rain after 11pm. Mostly cloudy, with a low around 35. Breezy, with a south wind 16 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 30%.
Saturday
Sunny, with a high near 44. West wind around 18 mph, with gusts as high as 28 mph.
Saturday Night
Partly cloudy, with a low around 31. West wind 9 to 11 mph.
Sunday
Mostly cloudy, with a high near 46. Northeast wind 8 to 13 mph becoming southeast in the afternoon.
Sunday Night
Rain likely. Cloudy, with a low around 39. Breezy, with a southeast wind 16 to 22 mph. Chance of precipitation is 60%.
Monday
Rain. High near 51. Breezy, with a south wind 21 to 23 mph, with gusts as high as 36 mph. Chance of precipitation is 90%.
Monday Night
Rain likely. Mostly cloudy, with a low around 28. Southwest wind around 18 mph becoming west after midnight. Winds could gust as high as 28 mph. Chance of precipitation is 60%.
Tuesday
Mostly sunny, with a high near 37. West wind around 15 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
Chilmark MA
 41.34°N 70.75°W (Elev. 79 ft)
Last Update:
4:02 pm EDT Mar 10, 2026
Forecast Valid:
4pm EDT Mar 10, 2026-6pm EDT Mar 17, 2026
 
Forecast Discussion
 
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Additional Resources

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