South Yarmouth Weather Forecast

    • 46
    • 53

    Rain Showers Likely

    • 45
    • 56

    Rain Showers

    • 43
    • 58

    Partly Sunny

    • 43
    • 57

    Chance Rain Showers

    • 43
    • 56

    Slight Chance Rain Showers

    • 48
    • 58

    Slight Chance Rain Showers

    • 47
    • 60

    Slight Chance Rain Showers

Today 29 Apr Barnstable

Mostly cloudy with a 20 percent chance of Showers. Patchy fog. Near steady temperature in the lower 50s. Northeast Winds 5 to 10 Mph.

Tonight 29 Apr Barnstable

Cloudy. A slight chance of Showers this Evening, then a chance of Showers with a slight chance of Thunderstorms after midnight. Patchy fog. Visibility one quarter mile or less at Times after midnight. Near steady temperature in the mid 40s. Northeast Winds 5 to 10 Mph, becoming southeast after midnight. Chance of rain 50 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

    46.4 °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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