Castle Island Weather Forecast

    • 68
    • 87

    Chance Rain Showers

    • 69
    • 88

    Mostly Sunny

    • 71
    • 89

    Partly Sunny

    • 62
    • 84

    Rain Showers Likely

    • 60
    • 77

    Partly Sunny

    • 61
    • 77

    Partly Sunny

Today 19 Jun Suffolk

Mostly cloudy with a chance of Showers in the Morning, then partly sunny in the afternoon. Highs in the upper 80s. Southwest Winds 10 to 15 Mph. Chance of rain 30 percent.

Tonight 19 Jun Suffolk

Mostly cloudy in the Evening, then becoming partly cloudy. A chance of Showers. Lows in the mid 60s. Southwest Winds 5 to 10 Mph. Chance of rain 40 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Castle Island Temperature Statistics

June Temperature

Boston, Logan International Airport (1.2 miles)

  • Lowest 1 June, 2021

    55 °F

  • Average June

    72.4 °F

  • Highest 7 June, 2021

    95 °F

Climate (2010–Present)

Boston, Logan International Airport (1.2 miles)

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  • Average Low 2010–Present

    45.6 °F

  • Average 2010–Present

    52.3 °F

  • Average High 2010–Present

    59.3 °F
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