Dorchester Weather Forecast

    • 48
    • 62

    Mostly Sunny

    • 56
    • 68

    Chance Rain Showers

    • 49
    • 66

    Rain Showers

    • 52
    • 64

    Rain Showers Likely

    • 45
    • 63

    Rain Showers Likely

    • 44
    • 60

    Slight Chance Rain Showers

Today 18 Oct Suffolk

Sunny. Highs in the lower 60s. North Winds around 5 Mph, becoming east around 5 Mph.

Tonight 18 Oct Suffolk

Mostly clear. Lows in the upper 40s. South Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Dorchester Temperature Statistics

October Temperature

Boston, Logan International Airport (5 miles)

  • Lowest 10 October, 2025

    41 °F

  • Average October

    58.8 °F

  • Highest 6 October, 2025

    82.9 °F

Climate (2020–Present)

Boston, Logan International Airport (5 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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