Williamsburg Weather Forecast

    • 70
    • 84

    Mostly Sunny

    • 54
    • 80

    Becoming Sunny

    • 57
    • 79

    Mostly Sunny

    • 61
    • 82

    Mostly Sunny

    • 65
    • 83

    Partly Sunny

    • 65
    • 84

    Partly Sunny

    • 65
    • 81

    Slight Chance Rain Showers

Today 13 Sep Dorchester

Mostly sunny. Highs in the mid 80s. West Winds around 5 Mph.

Tonight 13 Sep Dorchester

Mostly clear. Lows in the lower 70s. West Winds 5 to 10 Mph.

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  • Temperature Real-Time

Williamsburg Temperature Statistics

September Temperature

Cambridge-Dorchester Airport (13.7 miles)

  • Lowest 8 September, 2026

    59 °F

  • Average September

    76.2 °F

  • Highest 1 September, 2026

    93.2 °F

Climate (2021–2026)

Cambridge-Dorchester Airport (13.7 miles)

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  • Average Low 2021–2026

    49 °F

  • Average 2021–2026

    58.1 °F

  • Average High 2021–2026

    66.7 °F
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