Joseph Sylvia State Beach Weather Forecast

    • 68
    • 79

    Chance Thunderstorms

    • 67
    • 77

    Chance Rain Showers

    • 66
    • 79

    Mostly Sunny

    • 65
    • 80

    Mostly Sunny

    • 67
    • 78

    Partly Sunny

    • 69
    • 79

    Partly Sunny

    • 70
    • 80

    Partly Sunny

Today 1 Jul Dukes

Partly sunny. Near steady temperature in the mid 70s. Southwest Winds 15 to 20 Mph with Gusts up to 30 Mph.

Tonight 1 Jul Dukes

Mostly cloudy with a chance of Showers and Thunderstorms. Patchy fog. Lows in the upper 60s. Southwest Winds 15 to 20 Mph. Gusts up to 30 Mph this evening. Chance of rain 50 percent.

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Joseph Sylvia State Beach Temperature Statistics

July Temperature

Marthas Vineyard Airport (3.7 miles)

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  • Average July

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Climate (2020–Present)

Marthas Vineyard Airport (3.7 miles)

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  • Average Low 2020–2025

    44.8 °F

  • Average 2020–2025

    53.3 °F

  • Average High 2020–2025

    61.1 °F
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