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.

Overcast

46°F

8°C

Humidity 93%
Wind Speed N 9 mph
Barometer 30.00 in (1015.9 mb)
Dewpoint 44°F (7°C)
Visibility 8.00 mi
Wind Chill41°F (5°C)
Last update 18 Apr 7:53 pm EDT
Extended Forecast for

Chilmark MA

  • Tonight

    Tonight: Patchy drizzle after 3am. Patchy fog. Otherwise, cloudy, with a low around 44. East wind 5 to 7 mph becoming light and variable.

    Low: 44 °F

    Patchy Fog
    then Patchy
    Drizzle and
    Patchy Fog

  • Sunday

    Sunday: Showers and possibly a thunderstorm. Patchy fog. High near 55. South wind 11 to 15 mph becoming west in the afternoon. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 55 °F

    Chance
    Showers and
    Patchy Fog
    then Showers
    and Patchy
    Fog

  • Sunday Night

    Sunday Night: A chance of showers before 8pm. Cloudy during the early evening, then gradual clearing, with a low around 40. West wind 10 to 16 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 40 °F

    Chance
    Showers then
    Mostly Clear

  • Monday

    Monday: A slight chance of showers after 2pm. Mostly sunny, with a high near 50. West wind around 10 mph. Chance of precipitation is 20%.

    High: 50 °F

    Sunny then
    Slight Chance
    Showers

  • Monday Night

    Monday Night: A slight chance of showers before midnight. Partly cloudy, with a low around 35. West wind 9 to 14 mph becoming north after midnight. Chance of precipitation is 20%.

    Low: 35 °F

    Slight Chance
    Showers then
    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 46. North wind 7 to 13 mph.

    High: 46 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 38. Southwest wind 9 to 13 mph.

    Low: 38 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A chance of showers between 10am and 1pm. Mostly cloudy, with a high near 51. Southwest wind around 15 mph. Chance of precipitation is 30%.

    High: 51 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 41. Northwest wind around 9 mph.

    Low: 41 °F

    Partly Cloudy

Detailed Forecast

Tonight
Patchy drizzle after 3am. Patchy fog. Otherwise, cloudy, with a low around 44. East wind 5 to 7 mph becoming light and variable.
Sunday
Showers and possibly a thunderstorm. Patchy fog. High near 55. South wind 11 to 15 mph becoming west in the afternoon. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday Night
A chance of showers before 8pm. Cloudy during the early evening, then gradual clearing, with a low around 40. West wind 10 to 16 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Monday
A slight chance of showers after 2pm. Mostly sunny, with a high near 50. West wind around 10 mph. Chance of precipitation is 20%.
Monday Night
A slight chance of showers before midnight. Partly cloudy, with a low around 35. West wind 9 to 14 mph becoming north after midnight. Chance of precipitation is 20%.
Tuesday
Sunny, with a high near 46. North wind 7 to 13 mph.
Tuesday Night
Mostly cloudy, with a low around 38. Southwest wind 9 to 13 mph.
Wednesday
A chance of showers between 10am and 1pm. Mostly cloudy, with a high near 51. Southwest wind around 15 mph. Chance of precipitation is 30%.
Wednesday Night
Partly cloudy, with a low around 41. Northwest wind around 9 mph.
Thursday
Mostly sunny, with a high near 54. Northwest wind around 9 mph becoming west in the afternoon.
Thursday Night
Partly cloudy, with a low around 43. West wind around 8 mph becoming northwest after midnight.
Friday
Mostly sunny, with a high near 54. North wind 8 to 10 mph becoming southeast in the afternoon.
Friday Night
Partly cloudy, with a low around 43. Southeast wind 7 to 9 mph becoming southwest after midnight.
Saturday
Mostly sunny, with a high near 53. Northeast wind 9 to 11 mph becoming southeast in the afternoon.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Chilmark MA
 41.37°N 70.75°W (Elev. 299 ft)
Last Update:
6:31 pm EDT Apr 18, 2026
Forecast Valid:
8pm EDT Apr 18, 2026-6pm EDT Apr 25, 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