Boston Harbor - Chelsea Weather Forecast

    • 54
    • 69

    Rain Showers

    • 48
    • 70

    Rain Showers

    • 46
    • 56

    Rain Showers

    • 53
    • 70

    Chance Rain Showers

    • 51
    • 67

    Chance Rain Showers

    • 52
    • 66

    Chance Rain Showers

Today 28 May Suffolk

Partly sunny with isolated Showers, then mostly cloudy with scattered Showers with a slight chance of Thunderstorms. Much cooler. Near steady temperature in the upper 60s. North Winds around 10 Mph, becoming east. Gusts up to 20 Mph. Chance of rain 50 percent.

Tonight 28 May Suffolk

Mostly cloudy. Scattered Showers in the evening. Lows in the lower 50s. North Winds 5 to 10 Mph, becoming northwest after midnight. Chance of rain 40 percent.

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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

    60.9 °F
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