South Yarmouth Weather Forecast

    • 37
    • 55

    Chance Rain Showers

    • 36
    • 51

    Increasing Clouds

    • 37
    • 47

    Partly Sunny

    • 41
    • 49

    Slight Chance Rain Showers

    • 41
    • 54

    Partly Sunny

    • 41
    • 52

    Chance Rain Showers

    • 42
    • 52

    Chance Rain Showers

Today 19 Apr Barnstable

Rain with isolated Thunderstorms. Patchy fog. Visibility one quarter mile or less at Times. Highs in the upper 50s. West Winds 15 to 20 Mph with Gusts up to 35 Mph. Chance of rain 90 percent.

Tonight 19 Apr Barnstable

Mostly cloudy with rain Showers this Evening, then mostly clear after midnight. Patchy fog this evening. Lows in the upper 30s. Northwest Winds 15 to 20 Mph with Gusts up to 35 Mph, becoming west 5 to 10 Mph with Gusts up to 25 Mph after midnight. Chance of rain 80 percent.

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South Yarmouth Temperature Statistics

April Temperature

Hyannis, Barnstable Municipal-Boardman Airport (4.3 miles)

  • Lowest 9 April, 2026

    24.1 °F

  • Average April

    46.5 °F

  • Highest 15 April, 2026

    72 °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

    59.4 °F
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