Dorchester Weather Forecast

    • 29
    • 52

    Becoming Sunny

    • 33
    • 54

    Partly Sunny

    • 39
    • 63

    Mostly Sunny

    • 48
    • 73

    Mostly Sunny

    • 56
    • 80

    Partly Sunny

    • 57
    • 83

    Mostly Sunny

Today 17 Mar Dorchester

Mostly sunny. Cooler with Highs in the lower 50s. Northwest Winds 5 to 10 Mph.

Tonight 17 Mar Dorchester

Mostly clear. Lows in the upper 20s. Northwest Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Dorchester Temperature Statistics

March Temperature

Summerville Airport (8.1 miles)

  • Lowest 13 March, 2026

    35.6 °F

  • Average March

    64.9 °F

  • Highest 11 March, 2026

    89.6 °F

Climate (2021–Present)

Summerville Airport (8.1 miles)

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  • Average Low 2021–2026

    56 °F

  • Average 2021–2026

    65.6 °F

  • Average High 2021–2026

    76.7 °F
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