Oak Bluffs Harbor Weather Forecast

    • 64
    • 83

    Rain Showers Likely

    • 50
    • 73

    Partly Sunny

    • 62
    • 75

    Partly Sunny

    • 63
    • 76

    Chance Rain Showers

    • 62
    • 77

    Slight Chance Rain Showers

    • 66
    • 80

    Mostly Sunny

Today 17 Aug Dukes

Partly sunny. Highs around 80. Southwest Winds 10 to 15 Mph with Gusts up to 30 Mph.

Tonight 17 Aug Dukes

Showers likely with a chance of Thunderstorms in the Evening, then Showers likely with a slight chance of Thunderstorms after midnight. Patchy fog after midnight. Humid with Lows in the lower 60s. Southwest Winds 10 to 15 Mph, becoming north 15 to 20 Mph after midnight. Gusts up to 30 Mph. Chance of rain 70 percent.

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Oak Bluffs Harbor Temperature Statistics

August Temperature

Marthas Vineyard Airport (5 miles)

  • Lowest 9 August, 2025

    41.6 °F

  • Average August

    66.5 °F

  • Highest 11 August, 2025

    87.7 °F

Climate (2020–Present)

Marthas Vineyard Airport (5 miles)

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  • Average Low 2020–2025

    44.6 °F

  • Average 2020–2025

    53.2 °F

  • Average High 2020–2025

    61.1 °F
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