Somerville Weather Forecast

    • 12
    • 41

    Gradual Clearing

    • 19
    • 24

    Mostly Cloudy

    • 16
    • 28

    Slight Chance Snow

    • 28
    • 36

    Rain

    • 25
    • 45

    Rain Likely

    • 22
    • 30

    Partly Sunny

    • 22
    • 34

    Partly Sunny

Today 25 Dec Southeast Middlesex

Partly sunny. Highs in the lower 40s. Northwest Winds 15 to 20 Mph with Gusts up to 35 Mph.

Tonight 25 Dec Southeast Middlesex

Mostly clear. Cooler with Lows around 12. Northwest Winds 15 to 20 Mph with Gusts up to 35 Mph.

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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

    32.9 °F

  • Highest 19 December, 2025

    59 °F

Climate (2020–Present)

Boston, Logan International Airport (4.3 miles)

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  • Average Low 2020–2025

    46.9 °F

  • Average 2020–2025

    53.8 °F

  • Average High 2020–2025

    61.1 °F
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