Somerville Weather Forecast

    • 52
    • 62

    Chance Rain Showers

    • 44
    • 68

    Partly Sunny

    • 42
    • 58

    Sunny

    • 49
    • 64

    Mostly Sunny

    • 50
    • 70

    Mostly Sunny

    • 50
    • 68

    Mostly Sunny

Today 4 Oct Southeast Middlesex

Partly sunny. A slight chance of Showers in the afternoon. Highs in the lower 60s. East Winds 5 to 10 Mph. Chance of rain 20 percent.

Tonight 4 Oct Southeast Middlesex

Mostly cloudy with a 40 percent chance of Showers. Lows in the lower 50s. Northeast Winds around 5 Mph, becoming northwest around 5 Mph after midnight.

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Somerville Temperature Statistics

October Temperature

Boston, Logan International Airport (4.3 miles)

  • Lowest 1 October, 2026

    60.1 °F

  • Average October

    67.2 °F

  • Highest 1 October, 2026

    77 °F

Climate (2021–2026)

Boston, Logan International Airport (4.3 miles)

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  • Average Low 2021–2026

    46.6 °F

  • Average 2021–2026

    53.6 °F

  • Average High 2021–2026

    60.9 °F
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