Boston Harbor - Chelsea Weather Forecast

    • 34
    • 53

    Sunny

    • 44
    • 60

    Mostly Sunny

    • 48
    • 67

    Partly Sunny

    • 49
    • 66

    Mostly Cloudy

    • 52
    • 69

    Mostly Cloudy

    • 56
    • 69

    Rain Showers Likely

Today 31 Oct Suffolk

Sunny. Much cooler with Highs in the mid 50s. Northwest Winds 10 to 15 Mph. Gusts up to 30 Mph in the morning.

Tonight 31 Oct Suffolk

Clear. Lows in the lower 30s. Northwest Winds around 5 Mph.

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Boston Harbor - Chelsea Temperature Statistics

October Temperature

Boston, Logan International Airport (1.9 miles)

  • Lowest 18 October, 2026

    37.7 °F

  • Average October

    56.9 °F

  • Highest 2 October, 2026

    87.7 °F

Climate (2021–2026)

Boston, Logan International Airport (1.9 miles)

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  • Average Low 2021–2026

    46.5 °F

  • Average 2021–2026

    53.5 °F

  • Average High 2021–2026

    60.9 °F
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