Joseph Sylvia State Beach Weather Forecast

    • 64
    • 76

    Rain Showers Likely

    • 66
    • 78

    Partly Sunny

    • 69
    • 82

    Partly Sunny

    • 70
    • 80

    Slight Chance Thunderstorms

    • 68
    • 82

    Mostly Sunny

    • 69
    • 81

    Mostly Sunny

    • 70
    • 81

    Partly Sunny

Today 7 Jul Dukes

Showers likely. Patchy fog. Near steady temperature in the mid 70s. Northeast Winds 15 to 20 Mph with Gusts up to 30 Mph. Chance of rain 60 percent.

Tonight 7 Jul Dukes

Cloudy with Showers with a slight chance of Thunderstorms. Patchy fog. Lows in the lower 60s. Northeast Winds 15 to 20 Mph. Chance of rain 40 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Joseph Sylvia State Beach Temperature Statistics

July Temperature

Marthas Vineyard Airport (3.7 miles)

  • Lowest 1 July, 2026

    68 °F

  • Average July

    76.3 °F

  • Highest 4 July, 2026

    91 °F

Climate (2021–2026)

Marthas Vineyard Airport (3.7 miles)

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  • Average Low 2021–2026

    44.4 °F

  • Average 2021–2026

    52.9 °F

  • Average High 2021–2026

    60.6 °F
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