Boston Harbor - Chelsea Weather Forecast

    • 49
    • 63

    Chance Rain

    • 53
    • 55

    Rain

    • 56
    • 71

    Slight Chance Rain

    • 59
    • 82

    Partly Sunny

    • 56
    • 82

    Slight Chance Rain Showers

    • 53
    • 70

    Slight Chance Rain Showers

Today 23 May Suffolk

Mostly cloudy. Highs in the lower 60s. Northeast Winds 5 to 10 Mph, becoming east this afternoon.

Tonight 23 May Suffolk

Cloudy. A chance of rain after midnight. Lows in the upper 40s. Southeast Winds 5 to 10 Mph. Chance of rain 40 percent.

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  • Temperature Real-Time

Boston Harbor - Chelsea Temperature Statistics

May Temperature

Boston, Logan International Airport (1.9 miles)

  • Lowest 9 May, 2026

    42.7 °F

  • Average May

    61.1 °F

  • Highest 19 May, 2026

    96.7 °F

Climate (2021–Present)

Boston, Logan International Airport (1.9 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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