Katama County Beach Weather Forecast

    • 72
    • 81

    Increasing Clouds

    • 71
    • 80

    Partly Sunny

    • 69
    • 81

    Mostly Sunny

    • 70
    • 80

    Partly Sunny

    • 70
    • 81

    Slight Chance Rain Showers

    • 68
    • 79

    Partly Sunny

Today 7 Aug Dukes

Sunny. Patchy fog in the morning. Humid with Highs in the lower 80s. Southwest Winds 10 to 15 Mph.

Tonight 7 Aug Dukes

Partly cloudy. Patchy fog. Near steady temperature in the lower 70s. Southwest Winds 5 to 10 Mph.

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  • Temperature Real-Time

Katama County Beach Temperature Statistics

August Temperature

Marthas Vineyard Airport (6.8 miles)

  • Lowest 4 August, 2026

    63 °F

  • Average August

    72.7 °F

  • Highest 2 August, 2026

    81 °F

Climate (2021–2026)

Marthas Vineyard Airport (6.8 miles)

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  • Average Low 2021–2026

    44.5 °F

  • Average 2021–2026

    52.9 °F

  • Average High 2021–2026

    60.6 °F
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