Joseph Sylvia State Beach Weather Forecast

    • 20
    • 27

    Mostly Sunny

    • 34
    • 41

    Mostly Cloudy

    • 28
    • 42

    Partly Sunny

    • 12
    • 33

    Mostly Cloudy

    • 10
    • 20

    Mostly Cloudy

    • 12
    • 20

    Mostly Cloudy

Today 20 Jan Dukes

Sunny. Highs in the upper 20s. West Winds 15 to 20 Mph with Gusts up to 30 Mph.

Tonight 20 Jan Dukes

Mostly cloudy and brisk. Lows in the lower 20s. West Winds 15 to 25 Mph.

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Joseph Sylvia State Beach Temperature Statistics

January Temperature

Marthas Vineyard Airport (3.7 miles)

  • Lowest 1 January, 2026

    18 °F

  • Average January

    35.4 °F

  • Highest 9 January, 2026

    52 °F

Climate (2021–Present)

Marthas Vineyard Airport (3.7 miles)

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  • Average Low 2021–2026

    44.5 °F

  • Average 2021–2026

    53 °F

  • Average High 2021–2026

    60.8 °F
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