Somerville Weather Forecast

    • 44
    • 54

    Rain Showers

    • 51
    • 70

    Chance Rain Showers

    • 49
    • 63

    Rain Showers Likely

    • 50
    • 68

    Chance Rain Showers

    • 53
    • 68

    Chance Rain Showers

    • 60
    • 78

    Partly Sunny

Today 30 May Southeast Middlesex

Showers with a slight chance of Thunderstorms this Morning, then Showers likely this afternoon. Patchy fog. Much cooler with Highs in the lower 50s. North Winds 15 to 20 Mph with Gusts up to 45 Mph. Chance of rain 80 percent.

Tonight 30 May Southeast Middlesex

Partly cloudy in the Evening, then becoming mostly clear. Lows in the lower 40s. North Winds 10 to 15 Mph with Gusts up to 30 Mph, becoming northwest around 5 Mph after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Somerville Temperature Statistics

May Temperature

Boston, Logan International Airport (4.3 miles)

  • Lowest 9 May, 2026

    42.7 °F

  • Average May

    61.7 °F

  • Highest 19 May, 2026

    96.7 °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

    60.9 °F
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