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Forecast

The following is the 7 day weather and marine forecast for the Martha's Vineyard, MA area. This Information was last updated Thursday, September 2018 at 1:41 AM. These forecasts are provided by NOAA.

SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY EVENING

Thursday - September 20

Mostly Cloudy
Low: 53 ºF
High: 68 ºF

Marine forcast for Thursday
Winds from the North East. 15 to 20 knots, diminishing to 10 to 15 knots in the afternoon. Gusts up to 25 knots. Seas 4 to 6 feet. A chance of showers.
Marine forcast for Thursday Night
Winds from the North East. 10 to 15 knots with gusts up to 20 knots, becoming East 5 to 10 knots after midnight. Seas 4 to 6 feet.

Friday - September 21

Partly Sunny
Low: 66 ºF
High: 71 ºF

Marine forcast for Friday
Winds from the South. 10 to 15 knots with gusts up to 25 knots. Seas 4 to 6 feet.
Marine forcast for Friday Night
Winds from the South West. 15 to 20 knots with gusts up to 30 knots. Seas 4 to 7 feet.

Saturday - September 22

Slight Chance Rain Showers
Low: 58 ºF
High: 74 ºF

Marine forcast for Saturday
Winds from the West. 15 to 20 knots, becoming North 10 to 15 knots in the afternoon. Gusts up to 30 knots. Seas 4 to 7 feet.
Marine forcast for Saturday Night
Winds from the North East. 5 to 10 knots. Gusts up to 20 knots in the evening. Seas 3 to 5 feet.

Sunday - September 23

Partly Sunny
Low: 54 ºF
High: 69 ºF

Marine forcast for Sunday
Winds from the North East. 5 to 10 knots. Seas 2 to 3 feet.
Marine forcast for Sunday Night
Winds from the North East. 10 to 15 knots. Seas 3 to 5 feet.

Monday - September 24

Partly Sunny
Low: 57 ºF
High: 65 ºF

Marine forcast for Monday
Winds from the North East. 10 to 15 knots with gusts up to 20 knots. Seas 4 to 7 feet.
Marine forcast for Monday Night
Winds from the East. 10 to 15 knots with gusts up to 25 knots. Seas 5 to 7 feet.

Tuesday - September 25

Chance Rain Showers
Low: 64 ºF
High: 69 ºF

Wednesday - September 26

Chance Rain Showers
Low: na
High: 73 ºF

Seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height.

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