Downtown (Boston) Weather Forecast

    • 22
    • 26

    Increasing Clouds

    • 26
    • 40

    Chance Rain/Snow

    • 20
    • 36

    Chance Snow

    • 11
    • 28

    Mostly Sunny

    • 26
    • 33

    Chance Snow

    • 36
    • 45

    Rain Likely

Today 5 Dec Suffolk

Sunny, Colder with Highs in the upper 20s. Southwest Winds 5 to 10 Mph.

Tonight 5 Dec Suffolk

Mostly cloudy and not as cool. Near steady temperature in the mid 20s. Southwest Winds around 5 Mph.

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Downtown (Boston) Temperature Statistics

December Temperature

Boston, Logan International Airport (1.9 miles)

  • Lowest 1 December, 2025

    28.9 °F

  • Average December

    35.4 °F

  • Highest 1 December, 2025

    43 °F

Climate (2020–Present)

Boston, Logan International Airport (1.9 miles)

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  • Average Low 2020–2025

    47 °F

  • Average 2020–2025

    53.8 °F

  • Average High 2020–2025

    61.1 °F
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