Boston Harbor - Boston Main Channel Weather Forecast

    • 55
    • 70

    Rain Showers

    • 61
    • 79

    Partly Sunny

    • 58
    • 85

    Chance Rain Showers

    • 53
    • 65

    Slight Chance Rain Showers

    • 52
    • 64

    Chance Rain Showers

    • 51
    • 64

    Chance Rain Showers

Today 25 May Suffolk

Showers. Patchy fog. Visibility one quarter mile or less at Times this morning. Not as cool with Highs in the lower 70s. Northwest Winds around 5 Mph, becoming west this afternoon. Chance of rain 90 percent.

Tonight 25 May Suffolk

Mostly cloudy. Lows in the upper 50s. West Winds around 5 Mph.

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Boston Harbor - Boston Main Channel Temperature Statistics

May Temperature

Boston, Logan International Airport (0.6 miles)

  • Lowest 9 May, 2026

    42.7 °F

  • Average May

    61 °F

  • Highest 19 May, 2026

    96.7 °F

Climate (2021–Present)

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

    60.9 °F
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