South Yarmouth Weather Forecast

    • 33
    • 44

    Chance Rain

    • 29
    • 46

    Mostly Sunny

    • 34
    • 43

    Mostly Cloudy

    • 36
    • 53

    Rain

    • 24
    • 45

    Slight Chance Rain

    • 26
    • 35

    Partly Sunny

Today 13 Mar Barnstable

Sunny this Morning, then becoming partly sunny. Highs in the lower 40s. West Winds 5 to 10 Mph with Gusts up to 30 Mph, becoming southwest with Gusts up to 20 Mph this afternoon.

Tonight 13 Mar Barnstable

Mostly cloudy with a 50 percent chance of rain. Lows in the mid 30s. South Winds 15 to 20 Mph with Gusts up to 30 Mph.

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South Yarmouth Temperature Statistics

March Temperature

Hyannis, Barnstable Municipal-Boardman Airport (4.3 miles)

  • Lowest 2 March, 2026

    12.9 °F

  • Average March

    36.9 °F

  • Highest 9 March, 2026

    63 °F

Climate (2021–Present)

Hyannis, Barnstable Municipal-Boardman Airport (4.3 miles)

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  • Average Low 2021–2026

    44.9 °F

  • Average 2021–2026

    52.5 °F

  • Average High 2021–2026

    59.5 °F
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