Chapin Memorial Beach Weather Forecast

    • 63
    • 70

    Chance Rain Showers

    • 55
    • 71

    Mostly Sunny

    • 55
    • 63

    Mostly Sunny

    • 57
    • 65

    Partly Sunny

    • 61
    • 69

    Partly Sunny

    • 63
    • 73

    Partly Sunny

Today 18 Sep Barnstable

Mostly cloudy with a slight chance of Showers and Thunderstorms this Morning, then partly sunny this afternoon. Patchy fog. Highs in the mid 70s. North Winds 5 to 10 Mph. Chance of rain 20 percent.

Tonight 18 Sep Barnstable

Partly cloudy in the Evening, then becoming mostly clear. Patchy fog. Lows in the lower 60s. Southwest Winds 5 to 10 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Chapin Memorial Beach Temperature Statistics

September Temperature

Hyannis, Barnstable Municipal-Boardman Airport (4.3 miles)

  • Lowest 13 September, 2025

    44.1 °F

  • Average September

    64.1 °F

  • Highest 6 September, 2025

    77 °F

Climate (2020–Present)

Hyannis, Barnstable Municipal-Boardman Airport (4.3 miles)

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

  • Average Low 2020–2025

    45.3 °F

  • Average 2020–2025

    52.8 °F

  • Average High 2020–2025

    59.9 °F
Get WillyWeather+ to remove ads