Boston Harbor - Boston Main Channel Weather Forecast

    • 66
    • 76

    Becoming Sunny

    • 69
    • 85

    Partly Sunny

    • 67
    • 84

    Rain Showers

    • 65
    • 78

    Mostly Sunny

    • 66
    • 77

    Mostly Sunny

    • 68
    • 81

    Slight Chance Rain Showers

Today 8 Jul Suffolk

Mostly sunny. Warmer with Highs in the lower 80s. North Winds 5 to 10 Mph, becoming east this afternoon.

Tonight 8 Jul Suffolk

Mostly clear. Lows in the upper 60s. Southwest Winds 5 to 10 Mph.

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Boston Harbor - Boston Main Channel Temperature Statistics

July Temperature

Boston, Logan International Airport (0.6 miles)

  • Lowest 6 July, 2026

    66 °F

  • Average July

    82.2 °F

  • Highest 2 July, 2026

    101.6 °F

Climate (2021–2026)

Boston, Logan International Airport (0.6 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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