Barnstable Harbor - Little Thatch Island Weather Forecast

    • 63
    • 71

    Chance Rain Showers

    • 62
    • 71

    Rain Showers Likely

    • 64
    • 71

    Chance Rain Showers

    • 63
    • 76

    Chance Rain Showers

    • 61
    • 73

    Slight Chance Rain Showers

    • 60
    • 71

    Partly Sunny

Today 31 Aug Barnstable

Mostly sunny. Highs in the lower 70s. North Winds 5 to 10 Mph, becoming east this afternoon.

Tonight 31 Aug Barnstable

Mostly cloudy. A chance of Showers after midnight. Lows in the lower 60s. South Winds around 5 Mph. Chance of rain 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Barnstable Harbor - Little Thatch Island Temperature Statistics

August Temperature

Hyannis, Barnstable Municipal-Boardman Airport (4.3 miles)

  • Lowest 16 August, 2026

    55.9 °F

  • Average August

    73.7 °F

  • Highest 7 August, 2026

    88 °F

Climate (2021–2026)

Hyannis, Barnstable Municipal-Boardman Airport (4.3 miles)

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  • Average Low 2021–2026

    44.8 °F

  • Average 2021–2026

    52.4 °F

  • Average High 2021–2026

    59.3 °F
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