Boston Harbor - Boston Main Channel Weather Forecast

    • 67
    • 74

    Chance Rain Showers

    • 68
    • 86

    Slight Chance Thunderstorms

    • 63
    • 77

    Mostly Sunny

    • 67
    • 80

    Slight Chance Thunderstorms

    • 70
    • 83

    Partly Sunny

    • 73
    • 88

    Partly Sunny

Today 18 Jun Suffolk

Mostly cloudy. A chance of Showers, mainly in the morning. Patchy fog in the morning. Warmer with Highs around 80. South Winds 5 to 10 Mph. Chance of rain 50 percent.

Tonight 18 Jun Suffolk

Cloudy with a 50 percent chance of Showers. Patchy fog. Near steady temperature in the mid 60s. South Winds around 5 Mph.

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Boston Harbor - Boston Main Channel Temperature Statistics

June Temperature

Boston, Logan International Airport (0.6 miles)

  • Lowest 2 June, 2025

    51.7 °F

  • Average June

    65.7 °F

  • Highest 5 June, 2025

    87.7 °F

Climate (2020–Present)

Boston, Logan International Airport (0.6 miles)

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  • Average Low 2020–2025

    47 °F

  • Average 2020–2025

    53.8 °F

  • Average High 2020–2025

    61.1 °F
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