Somerville Weather Forecast

    • 24
    • 30

    Increasing Clouds

    • 33
    • 46

    Rain Likely

    • 22
    • 35

    Partly Sunny

    • 23
    • 34

    Partly Sunny

    • 20
    • 35

    Chance Snow

    • 16
    • 30

    Mostly Sunny

Today 9 Dec Southeast Middlesex

Sunny, cold with Highs in the upper 20s. Light and variable Winds, becoming southwest around 5 Mph in the afternoon.

Tonight 9 Dec Southeast Middlesex

Mostly clear and Colder. Near steady temperature around 8 above. Light and variable Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Somerville Temperature Statistics

December Temperature

Boston, Logan International Airport (4.3 miles)

  • Lowest 5 December, 2025

    12 °F

  • Average December

    32.2 °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 °F
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