Middle Brewster Island Weather Forecast

    • 56
    • 72

    Partly Sunny

    • 57
    • 60

    Mostly Sunny

    • 57
    • 63

    Rain Showers

    • 53
    • 62

    Chance Rain Showers

    • 54
    • 60

    Chance Rain Showers

    • 55
    • 59

    Chance Rain Showers

Today 18 Sep Suffolk

Mostly sunny. Highs around 80. Northwest Winds around 10 Mph with Gusts up to 20 Mph.

Tonight 18 Sep Suffolk

Partly cloudy. Cooler with Lows in the lower 50s. North Winds around 10 Mph with Gusts up to 25 Mph.

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Middle Brewster Island Temperature Statistics

September Temperature

Boston, Logan International Airport (6.2 miles)

  • Lowest 15 September, 2026

    53.7 °F

  • Average September

    69 °F

  • Highest 10 September, 2026

    87.7 °F

Climate (2021–2026)

Boston, Logan International Airport (6.2 miles)

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  • Average Low 2021–2026

    46.6 °F

  • Average 2021–2026

    53.6 °F

  • Average High 2021–2026

    61 °F
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