Hyannis Breakwater Weather Forecast

    • 61
    • 74

    Mostly Sunny

    • 61
    • 71

    Increasing Clouds

    • 67
    • 73

    Partly Sunny

    • 69
    • 74

    Rain Showers Likely

    • 68
    • 76

    Rain Showers Likely

    • 68
    • 75

    Slight Chance Rain Showers

    • 69
    • 77

    Partly Sunny

Today 25 Jul Barnstable

Sunny. Near steady temperature in the mid 70s. East Winds 5 to 10 Mph.

Tonight 25 Jul Barnstable

Mostly clear. Lows in the upper 50s. Northeast Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Hyannis Breakwater Temperature Statistics

July Temperature

Hyannis, Barnstable Municipal-Boardman Airport (3.1 miles)

  • Lowest 20 July, 2026

    53.1 °F

  • Average July

    72.9 °F

  • Highest 4 July, 2026

    93.9 °F

Climate (2021–2026)

Hyannis, Barnstable Municipal-Boardman Airport (3.1 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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