Somerville Weather Forecast

    • 72
    • 92

    Chance Rain Showers

    • 69
    • 92

    Mostly Sunny

    • 72
    • 91

    Partly Sunny

    • 67
    • 87

    Slight Chance Thunderstorms

    • 67
    • 86

    Partly Sunny

    • 66
    • 85

    Slight Chance Thunderstorms

    • 61
    • 83

    Partly Sunny

Today 8 Aug Southeast Middlesex

Mostly sunny. Near steady temperature in the upper 80s. West Winds 5 to 10 Mph.

Tonight 8 Aug Southeast Middlesex

Mostly cloudy with a chance of Showers with a slight chance of Thunderstorms this Evening, then mostly clear after midnight. Lows in the lower 70s. West Winds 5 to 10 Mph. Chance of rain 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Somerville Temperature Statistics

August Temperature

Boston, Logan International Airport (4.3 miles)

  • Lowest 4 August, 2026

    66.7 °F

  • Average August

    78 °F

  • Highest 5 August, 2026

    88.6 °F

Climate (2021–2026)

Boston, Logan International Airport (4.3 miles)

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  • Average Low 2021–2026

    46.7 °F

  • Average 2021–2026

    53.7 °F

  • Average High 2021–2026

    61 °F
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