South Yarmouth Weather Forecast

    • 36
    • 46

    Increasing Clouds

    • 41
    • 52

    Chance Rain Showers

    • 38
    • 53

    Mostly Sunny

    • 41
    • 49

    Slight Chance Rain Showers

    • 48
    • 54

    Mostly Cloudy

    • 47
    • 60

    Mostly Cloudy

    • 47
    • 59

    Slight Chance Rain Showers

Today 9 Apr Barnstable

Sunny. Highs in the upper 40s. Southeast Winds 10 to 15 Mph.

Tonight 9 Apr Barnstable

Partly cloudy this Evening, then becoming mostly cloudy. Not as cool with Lows in the mid 30s. South Winds 10 to 15 Mph, becoming southwest around 5 Mph after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

South Yarmouth Temperature Statistics

April Temperature

Hyannis, Barnstable Municipal-Boardman Airport (4.3 miles)

  • Lowest 7 April, 2026

    28 °F

  • Average April

    44.6 °F

  • Highest 3 April, 2026

    55.9 °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

    52.4 °F

  • Average High 2021–2026

    59.4 °F
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