Boston Harbor - Boston Main Channel Weather Forecast

    • 19
    • 27

    Mostly Sunny

    • 32
    • 35

    Rain

    • 28
    • 49

    Rain

    • 24
    • 29

    Mostly Cloudy

    • 26
    • 33

    Mostly Cloudy

    • 19
    • 30

    Chance Snow

    • 17
    • 26

    Partly Sunny

Today 27 Dec Suffolk

Sunny, cold. Near steady temperature in the mid 20s. North Winds 5 to 10 Mph with Gusts up to 20 Mph.

Tonight 27 Dec Suffolk

Mostly clear. Lows 14 to 20. Northwest Winds around 5 Mph.

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Boston Harbor - Boston Main Channel Temperature Statistics

December Temperature

Boston, Logan International Airport (0.6 miles)

  • Lowest 5 December, 2025

    12 °F

  • Average December

    32.8 °F

  • Highest 19 December, 2025

    59 °F

Climate (2020–Present)

Boston, Logan International Airport (0.6 miles)

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  • Average Low 2020–2025

    46.9 °F

  • Average 2020–2025

    53.7 °F

  • Average High 2020–2025

    61 °F
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