Boston Harbor - Chelsea Weather Forecast

    • 63
    • 78

    Sunny

    • 63
    • 82

    Mostly Sunny

    • 60
    • 79

    Mostly Sunny

    • 63
    • 75

    Partly Sunny

    • 66
    • 82

    Chance Rain Showers

    • 67
    • 81

    Rain Showers Likely

    • 66
    • 79

    Chance Rain Showers

Today 23 Jul Suffolk

Sunny. Near steady temperature in the upper 70s. Northwest Winds around 5 Mph.

Tonight 23 Jul Suffolk

Mostly clear. Lows in the lower 60s. Southwest Winds around 5 Mph.

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Boston Harbor - Chelsea Temperature Statistics

July Temperature

Boston, Logan International Airport (1.9 miles)

  • Lowest 8 July, 2026

    61.6 °F

  • Average July

    77.4 °F

  • Highest 2 July, 2026

    101.6 °F

Climate (2021–2026)

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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