Hyannis Breakwater Weather Forecast

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    Chance Rain

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    Rain

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    Rain Showers

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    Rain Showers

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    Chance Rain Showers

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    Partly Sunny

Today 24 Sep Barnstable

Mostly sunny and breezy. Highs in the lower 60s. Northeast Winds 15 to 25 Mph with Gusts up to 35 Mph.

Tonight 24 Sep Barnstable

Mostly cloudy and breezy. Lows in the mid 50s. Northeast Winds 15 to 25 Mph. Gusts up to 35 Mph, increasing to 45 Mph after midnight.

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Hyannis Breakwater Temperature Statistics

September Temperature

Hyannis, Barnstable Municipal-Boardman Airport (3.1 miles)

  • Lowest 16 September, 2026

    46.9 °F

  • Average September

    65.9 °F

  • Highest 10 September, 2026

    82 °F

Climate (2021–2026)

Hyannis, Barnstable Municipal-Boardman Airport (3.1 miles)

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  • Average Low 2021–2026

    44.7 °F

  • Average 2021–2026

    52.3 °F

  • Average High 2021–2026

    59.2 °F
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