Barnstable Harbor Weather Forecast

    • 43
    • 57

    Slight Chance Rain Showers

    • 43
    • 51

    Breezy

    • 43
    • 52

    Sunny

    • 45
    • 56

    Mostly Sunny

    • 48
    • 60

    Mostly Sunny

    • 46
    • 56

    Partly Sunny

Today 22 Oct Barnstable

Mostly cloudy with a chance of Showers this Morning, then partly sunny this afternoon. Breezy with Highs in the upper 50s. North Winds 20 to 25 Mph with Gusts up to 45 Mph. Chance of rain 50 percent.

Tonight 22 Oct Barnstable

Partly cloudy in the Evening, then becoming mostly clear. Breezy, cooler with Lows in the lower 40s. North Winds 15 to 25 Mph with Gusts up to 40 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Barnstable Harbor Temperature Statistics

October Temperature

Hyannis, Barnstable Municipal-Boardman Airport (3.1 miles)

  • Lowest 19 October, 2026

    34 °F

  • Average October

    57.6 °F

  • Highest 2 October, 2026

    77 °F

Climate (2021–2026)

Hyannis, Barnstable Municipal-Boardman Airport (3.1 miles)

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  • Average Low 2021–2026

    44.6 °F

  • Average 2021–2026

    52.3 °F

  • Average High 2021–2026

    59.2 °F
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