Boston Harbor - Charlestown Weather Forecast

    • 45
    • 62

    Rain Showers

    • 49
    • 63

    Rain

    • 48
    • 72

    Rain Showers Likely

    • 45
    • 60

    Rain Showers Likely

    • 45
    • 62

    Partly Sunny

    • 46
    • 63

    Chance Rain Showers

Today 8 May Suffolk

Partly sunny. Scattered Showers in the afternoon. Highs in the lower 60s. West Winds 10 to 15 Mph. Gusts up to 25 Mph in the afternoon. Chance of rain 30 percent.

Tonight 8 May Suffolk

Partly cloudy. Near steady temperature in the mid 40s. West Winds 5 to 10 Mph.

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  • Temperature Real-Time

Boston Harbor - Charlestown Temperature Statistics

May Temperature

Boston, Logan International Airport (1.9 miles)

  • Lowest 3 May, 2026

    44.7 °F

  • Average May

    56.6 °F

  • Highest 5 May, 2026

    77 °F

Climate (2021–Present)

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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