Somerville Weather Forecast

    • 60
    • 78

    Increasing Clouds

    • 55
    • 84

    Mostly Sunny

    • 59
    • 77

    Mostly Sunny

    • 66
    • 90

    Partly Sunny

    • 58
    • 88

    Thunderstorms

    • 51
    • 69

    Partly Sunny

Today 16 May Southeast Middlesex

Sunny. Not as cool with Highs in the upper 70s. Southwest Winds 10 to 15 Mph with Gusts up to 25 Mph.

Tonight 16 May Southeast Middlesex

Mostly clear. Patchy fog. Near steady temperature in the upper 40s. Southwest Winds around 5 Mph.

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  • Temperature Real-Time

Somerville Temperature Statistics

May Temperature

Boston, Logan International Airport (4.3 miles)

  • Lowest 9 May, 2026

    42.7 °F

  • Average May

    57.1 °F

  • Highest 5 May, 2026

    79.6 °F

Climate (2021–Present)

Boston, Logan International Airport (4.3 miles)

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  • Average Low 2021–2026

    46.7 °F

  • Average 2021–2026

    53.6 °F

  • Average High 2021–2026

    61 °F
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