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

64°F

18°C

Humidity 100%
Wind Speed E 6 mph
Barometer 30.13 in (1020.2 mb)
Dewpoint 64°F (18°C)
Visibility 9.00 mi
Last update 13 Jul 12:53 am EDT
Extended Forecast for

Chilmark MA

  • Overnight

    Overnight: Patchy fog. Otherwise, mostly cloudy, with a low around 64. East wind around 6 mph.

    Low: 64 °F

    Patchy Fog

  • Sunday

    Sunday: Patchy fog before 11am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 77. East wind 7 to 10 mph.

    High: 77 °F

    Patchy Fog
    then Partly
    Sunny

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms between 11pm and 4am, then showers likely and possibly a thunderstorm after 4am. Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 66. Southeast wind 5 to 7 mph. Chance of precipitation is 60%.

    Low: 66 °F

    Showers
    Likely and
    Patchy Fog

  • Monday

    Monday: Showers likely before 7am. Mostly sunny, with a high near 79. South wind 5 to 10 mph. Chance of precipitation is 60%.

    High: 79 °F

    Showers
    Likely then
    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 69. Southwest wind around 7 mph.

    Low: 69 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 81. Southwest wind 6 to 11 mph.

    High: 81 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 69. Southwest wind around 9 mph.

    Low: 69 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 81. Southwest wind 6 to 11 mph.

    High: 81 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 70. Southwest wind around 11 mph.

    Low: 70 °F

    Partly Cloudy

Detailed Forecast

Overnight
Patchy fog. Otherwise, mostly cloudy, with a low around 64. East wind around 6 mph.
Sunday
Patchy fog before 11am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 77. East wind 7 to 10 mph.
Sunday Night
A chance of showers and thunderstorms between 11pm and 4am, then showers likely and possibly a thunderstorm after 4am. Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 66. Southeast wind 5 to 7 mph. Chance of precipitation is 60%.
Monday
Showers likely before 7am. Mostly sunny, with a high near 79. South wind 5 to 10 mph. Chance of precipitation is 60%.
Monday Night
Mostly cloudy, with a low around 69. Southwest wind around 7 mph.
Tuesday
Mostly sunny, with a high near 81. Southwest wind 6 to 11 mph.
Tuesday Night
Mostly clear, with a low around 69. Southwest wind around 9 mph.
Wednesday
Sunny, with a high near 81. Southwest wind 6 to 11 mph.
Wednesday Night
Partly cloudy, with a low around 70. Southwest wind around 11 mph.
Thursday
Mostly sunny, with a high near 81. Southwest wind 11 to 15 mph.
Thursday Night
Mostly cloudy, with a low around 69. Southwest wind 13 to 15 mph.
Friday
A chance of showers. Partly sunny, with a high near 81. Southwest wind 11 to 14 mph. Chance of precipitation is 30%.
Friday Night
A chance of showers. Mostly cloudy, with a low around 67. Southwest wind 9 to 11 mph. Chance of precipitation is 30%.
Saturday
A chance of showers. Partly sunny, with a high near 79. West wind around 11 mph becoming south in the afternoon. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Chilmark MA
 41.35°N 70.78°W (Elev. 3 ft)
Last Update:
6:14 pm EDT Jul 12, 2025
Forecast Valid:
1am EDT Jul 13, 2025-6pm EDT Jul 19, 2025
 
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