Somerville Weather Forecast

    • 33
    • 48

    Rain Likely

    • 22
    • 37

    Slight Chance Snow Showers

    • 23
    • 33

    Partly Sunny

    • 27
    • 38

    Chance Snow

    • 15
    • 34

    Chance Snow

    • 16
    • 25

    Partly Sunny

Today 10 Dec Southeast Middlesex

Mostly cloudy. A slight chance of rain in the Morning, then rain likely in the afternoon. Not as cool with Highs in the mid 40s. South Winds 5 to 10 Mph with Gusts up to 25 Mph. Chance of rain 70 percent.

Tonight 10 Dec Southeast Middlesex

Mostly cloudy with a 20 percent chance of snow. Not as cool. Near steady temperature around 30. Temperature rising into the lower 30s through Sunrise. Southwest Winds 5 to 10 Mph.

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Somerville Temperature Statistics

December Temperature

Boston, Logan International Airport (4.3 miles)

  • Lowest 5 December, 2025

    12 °F

  • Average December

    32.9 °F

  • Highest 1 December, 2025

    43 °F

Climate (2020–Present)

Boston, Logan International Airport (4.3 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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