Keyes Memorial Beach Weather Forecast

    • 59
    • 62

    Rain Showers

    • 61
    • 67

    Rain Showers

    • 59
    • 66

    Chance Rain Showers

    • 58
    • 64

    Mostly Cloudy

    • 59
    • 65

    Partly Sunny

    • 61
    • 68

    Partly Sunny

    • 59
    • 68

    Mostly Cloudy

Today 26 Sep Barnstable

Mostly sunny. Highs in the mid 60s.

Tonight 26 Sep Barnstable

Showers with a chance of Thunderstorms. Patchy fog. Breezy with Lows in the upper 50s. Northeast Winds 15 to 25 Mph with Gusts up to 50 Mph. Chance of rain near 100 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Keyes Memorial Beach Temperature Statistics

September Temperature

Hyannis, Barnstable Municipal-Boardman Airport (2.5 miles)

  • Lowest 16 September, 2026

    46.9 °F

  • Average September

    65 °F

  • Highest 10 September, 2026

    82 °F

Climate (2021–2026)

Hyannis, Barnstable Municipal-Boardman Airport (2.5 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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