South Yarmouth Weather Forecast

    • 42
    • 60

    Increasing Clouds

    • 52
    • 70

    Rain Showers Likely

    • 40
    • 55

    Chance Rain Showers

    • 42
    • 56

    Mostly Sunny

    • 45
    • 59

    Partly Sunny

    • 44
    • 61

    Partly Sunny

    • 42
    • 59

    Mostly Sunny

Today 15 Oct Barnstable

Sunny and much cooler. Near steady temperature in the upper 50s. North Winds 10 to 15 Mph with Gusts up to 30 Mph.

Tonight 15 Oct Barnstable

Partly cloudy in the Evening, then becoming mostly cloudy. Lows in the mid 40s. East Winds around 5 Mph, becoming southeast after midnight.

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  • Temperature Real-Time

South Yarmouth Temperature Statistics

October Temperature

Hyannis, Barnstable Municipal-Boardman Airport (4.3 miles)

  • Lowest 7 October, 2026

    36 °F

  • Average October

    58.9 °F

  • Highest 2 October, 2026

    77 °F

Climate (2021–2026)

Hyannis, Barnstable Municipal-Boardman Airport (4.3 miles)

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  • Average Low 2021–2026

    44.7 °F

  • Average 2021–2026

    52.3 °F

  • Average High 2021–2026

    59.2 °F
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