Boston Harbor - Chelsea Weather Forecast

    • 28
    • 38

    Chance Snow

    • 14
    • 33

    Chance Snow

    • 21
    • 28

    Slight Chance Snow Showers

    • 24
    • 33

    Partly Sunny

    • 29
    • 45

    Mostly Cloudy

    • 38
    • 51

    Rain Showers Likely

Today 13 Dec Suffolk

Cloudy. Near steady temperature in the upper 30s. Southwest Winds 5 to 10 Mph with Gusts up to 25 Mph.

Tonight 13 Dec Suffolk

Cloudy. A chance of snow in the Evening, then snow likely after midnight. Snow accumulation around an inch. Lows in the upper 20s. West Winds 5 to 10 Mph. Chance of snow 70 percent.

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Boston Harbor - Chelsea Temperature Statistics

December Temperature

Boston, Logan International Airport (1.9 miles)

  • Lowest 5 December, 2025

    12 °F

  • Average December

    31.9 °F

  • Highest 10 December, 2025

    48 °F

Climate (2020–Present)

Boston, Logan International Airport (1.9 miles)

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  • Average Low 2020–2025

    46.9 °F

  • Average 2020–2025

    53.8 °F

  • Average High 2020–2025

    61 °F
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