Boston Harbor - Charlestown Weather Forecast

    • 69
    • 85

    Partly Sunny

    • 73
    • 94

    Mostly Sunny

    • 74
    • 94

    Chance Rain Showers

    • 70
    • 87

    Rain Showers Likely

    • 67
    • 80

    Slight Chance Thunderstorms

    • 66
    • 77

    Chance Rain Showers

    • 65
    • 76

    Chance Rain Showers

Today 5 Jul Suffolk

Partly sunny. Near steady temperature in the lower 80s. Southwest Winds 5 to 10 Mph.

Tonight 5 Jul Suffolk

Partly cloudy. Lows in the upper 60s. Southwest Winds 5 to 10 Mph. Gusts up to 20 Mph after midnight.

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Boston Harbor - Charlestown Temperature Statistics

July Temperature

Boston, Logan International Airport (1.9 miles)

  • Lowest 1 July, 2025

    70 °F

  • Average July

    79.4 °F

  • Highest 1 July, 2025

    93 °F

Climate (2020–Present)

Boston, Logan International Airport (1.9 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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