Castle Island Weather Forecast

    • 51
    • 58

    Rain Likely

    • 43
    • 63

    Partly Sunny

    • 51
    • 56

    Rain

    • 35
    • 58

    Rain Likely

    • 37
    • 44

    Slight Chance Rain

    • 41
    • 49

    Slight Chance Rain

Today 7 Nov Suffolk

Partly sunny. Highs in the upper 50s. Southwest Winds 10 to 15 Mph. Gusts up to 20 Mph, increasing to 30 Mph.

Tonight 7 Nov Suffolk

Mostly cloudy with a 50 percent chance of rain. Patchy fog after midnight. Not as cool. Near steady temperature in the lower 50s. Southwest Winds 15 to 20 Mph with Gusts up to 30 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Castle Island Temperature Statistics

November Temperature

Boston, Logan International Airport (1.2 miles)

  • Lowest 2 November, 2025

    39.9 °F

  • Average November

    49.7 °F

  • Highest 1 November, 2025

    57 °F

Climate (2020–Present)

Boston, Logan International Airport (1.2 miles)

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  • Average Low 2020–2025

    47 °F

  • Average 2020–2025

    53.9 °F

  • Average High 2020–2025

    61.2 °F
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