South Yarmouth Weather Forecast

    • 55
    • 71

    Increasing Clouds

    • 48
    • 64

    Partly Sunny

    • 53
    • 65

    Partly Sunny

    • 54
    • 68

    Mostly Cloudy

    • 52
    • 66

    Slight Chance Rain Showers

    • 52
    • 63

    Mostly Cloudy

Today 28 Sep Barnstable

Sunny. Highs in the upper 60s. West Winds 5 to 10 Mph with Gusts up to 20 Mph.

Tonight 28 Sep Barnstable

Mostly cloudy. Lows in the mid 50s. West Winds 5 to 10 Mph, becoming north 10 to 15 Mph after midnight.

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South Yarmouth Temperature Statistics

September Temperature

Hyannis, Barnstable Municipal-Boardman Airport (4.3 miles)

  • Lowest 25 September, 2022

    44.1 °F
  • Average September

    67.3 °F
  • Highest 11 September, 2022

    86 °F

Climate (2010–Present)

Hyannis, Barnstable Municipal-Boardman Airport (4.3 miles)

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  • Average Low 2010–Present

    46.5 °F
  • Average 2010–Present

    54.1 °F
  • Average High 2010–Present

    60.8 °F
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