Dorchester Weather Forecast

    • 53
    • 80

    Mostly Sunny

    • 60
    • 83

    Mostly Sunny

    • 47
    • 82

    Chance Rain Showers

    • 47
    • 71

    Partly Sunny

    • 49
    • 73

    Chance Rain Showers

    • 51
    • 71

    Chance Rain Showers

Today 15 Aug Southern Grafton

Mostly sunny. Highs in the lower 80s. Light and variable Winds.

Tonight 15 Aug Southern Grafton

Mostly clear. Lows in the mid 50s. Light and variable Winds.

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  • Temperature Real-Time

Dorchester Temperature Statistics

August Temperature

Plymouth Municipal Airport (9.3 miles)

  • Lowest 2 August, 2025

    43.9 °F

  • Average August

    68.2 °F

  • Highest 12 August, 2025

    93.7 °F

Climate (2020–Present)

Plymouth Municipal Airport (9.3 miles)

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  • Average Low 2020–2025

    36.7 °F

  • Average 2020–2025

    46.7 °F

  • Average High 2020–2025

    57.1 °F
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