Thatch Island Weather Forecast

    • 66
    • 81

    Chance Rain Showers

    • 66
    • 76

    Chance Rain Showers

    • 69
    • 76

    Rain Showers Likely

    • 69
    • 78

    Chance Rain Showers

    • 65
    • 78

    Mostly Sunny

    • 66
    • 76

    Mostly Sunny

Today 20 Aug Barnstable

Sunny with Highs around 80. Southwest Winds 5 to 10 Mph.

Tonight 20 Aug Barnstable

Mostly cloudy. A chance of Showers in the evening. Humid with Lows in the upper 60s. West Winds around 5 Mph, becoming northwest after midnight. Chance of rain 50 percent.

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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

    73.8 °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

    51.9 °F

  • Average High 2021–2026

    59.1 °F
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