Bass River - South Yarmouth Weather Forecast

    • 67
    • 77

    Mostly Cloudy

    • 71
    • 83

    Partly Sunny

    • 67
    • 83

    Partly Sunny

    • 66
    • 78

    Chance Rain Showers

    • 67
    • 77

    Chance Rain Showers

    • 68
    • 80

    Chance Rain Showers

    • 65
    • 81

    Mostly Sunny

Today 18 Aug Barnstable

Mostly sunny. Near steady temperature in the mid 70s. North Winds 5 to 10 Mph.

Tonight 18 Aug Barnstable

Partly cloudy this Evening, then becoming mostly cloudy. Patchy fog after midnight. Lows in the upper 60s. Northwest Winds around 5 Mph, becoming southwest after midnight.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Bass River - South Yarmouth Temperature Statistics

August Temperature

Hyannis, Barnstable Municipal-Boardman Airport (4.3 miles)

  • Lowest 16 August, 2026

    55.9 °F

  • Average August

    75.2 °F

  • Highest 7 August, 2026

    88 °F

Climate (2021–2026)

Hyannis, Barnstable Municipal-Boardman Airport (4.3 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    44.8 °F

  • Average 2021–2026

    52.4 °F

  • Average High 2021–2026

    59.3 °F
Get WillyWeather+ to remove ads