Thatch Island Weather Forecast

    • 70
    • 78

    Mostly Cloudy

    • 67
    • 78

    Slight Chance Thunderstorms

    • 65
    • 75

    Partly Sunny

    • 69
    • 77

    Partly Sunny

    • 68
    • 77

    Mostly Cloudy

    • 68
    • 75

    Chance Rain Showers

Today 27 Aug Barnstable

Partly sunny. Humid with Highs around 80. Southwest Winds 10 to 15 Mph with Gusts up to 25 Mph.

Tonight 27 Aug Barnstable

Mostly cloudy. Near steady temperature in the mid 60s. Southwest Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Thatch Island Temperature Statistics

August Temperature

Otis Air National Guard Base (5.6 miles)

  • Lowest 16 August, 2026

    55.4 °F

  • Average August

    73 °F

  • Highest 7 August, 2026

    89.6 °F

Climate (2021–2026)

Otis Air National Guard Base (5.6 miles)

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  • Average Low 2021–2026

    43.7 °F

  • Average 2021–2026

    51.8 °F

  • Average High 2021–2026

    59.1 °F
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