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.

Fog/Mist

46°F

8°C

Humidity 100%
Wind Speed SE 5 mph
Barometer 29.88 in (1011.9 mb)
Dewpoint 46°F (8°C)
Visibility 0.75 mi
Wind Chill44°F (7°C)
Last update 19 Apr 3:53 am EDT
Extended Forecast for

Chilmark MA

  • Today

    Today: Rain and possibly a thunderstorm. Patchy dense fog between 1pm and 2pm. High near 57. South wind 8 to 17 mph becoming west in the afternoon. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 57 °F

    Chance Rain
    and Patchy
    Dense Fog
    then Rain and
    Patchy Fog

  • Tonight

    Tonight: A chance of rain before 8pm. Cloudy during the early evening, then gradual clearing, with a low around 39. Northwest wind 10 to 16 mph, with gusts as high as 26 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 39 °F

    Chance Rain
    then Mostly
    Clear

  • Monday

    Monday: A slight chance of rain after 2pm. Mostly sunny, with a high near 50. Southwest wind 7 to 10 mph. Chance of precipitation is 20%.

    High: 50 °F

    Sunny then
    Slight Chance
    Rain

  • Monday Night

    Monday Night: A chance of showers, mainly before 7pm. Partly cloudy, with a low around 35. West wind 8 to 13 mph becoming north after midnight. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 35 °F

    Chance
    Showers then
    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 48. North wind 7 to 13 mph.

    High: 48 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A slight chance of showers after 3am. Partly cloudy, with a low around 38. Southwest wind 8 to 11 mph. Chance of precipitation is 20%.

    Low: 38 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 52. South wind 11 to 13 mph.

    High: 52 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 41. Southeast wind around 8 mph.

    Low: 41 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 56. West wind around 9 mph.

    High: 56 °F

    Mostly Sunny

Detailed Forecast

Today
Rain and possibly a thunderstorm. Patchy dense fog between 1pm and 2pm. High near 57. South wind 8 to 17 mph becoming west in the afternoon. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight
A chance of rain before 8pm. Cloudy during the early evening, then gradual clearing, with a low around 39. Northwest wind 10 to 16 mph, with gusts as high as 26 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Monday
A slight chance of rain after 2pm. Mostly sunny, with a high near 50. Southwest wind 7 to 10 mph. Chance of precipitation is 20%.
Monday Night
A chance of showers, mainly before 7pm. Partly cloudy, with a low around 35. West wind 8 to 13 mph becoming north after midnight. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Tuesday
Sunny, with a high near 48. North wind 7 to 13 mph.
Tuesday Night
A slight chance of showers after 3am. Partly cloudy, with a low around 38. Southwest wind 8 to 11 mph. Chance of precipitation is 20%.
Wednesday
Mostly cloudy, with a high near 52. South wind 11 to 13 mph.
Wednesday Night
Partly cloudy, with a low around 41. Southeast wind around 8 mph.
Thursday
Mostly sunny, with a high near 56. West wind around 9 mph.
Thursday Night
Partly cloudy, with a low around 42. West wind around 7 mph becoming north after midnight.
Friday
Mostly sunny, with a high near 54. North wind around 9 mph becoming south in the afternoon.
Friday Night
Partly cloudy, with a low around 42. South wind around 8 mph becoming west after midnight.
Saturday
Mostly sunny, with a high near 55. Northeast wind 8 to 10 mph becoming southeast in the afternoon.
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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:
3:05 am EDT Apr 19, 2026
Forecast Valid:
4am EDT Apr 19, 2026-6pm EDT Apr 25, 2026
 
Forecast Discussion
 
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Additional Resources

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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