Williamstown Weather Forecast

    • 58
    • 81

    Becoming Sunny

    • 59
    • 84

    Mostly Sunny

    • 63
    • 88

    Mostly Sunny

    • 66
    • 90

    Partly Sunny

    • 70
    • 91

    Mostly Sunny

    • 71
    • 93

    Slight Chance Thunderstorms

Today 8 Aug Gloucester

Mostly sunny. Highs in the lower 80s. East Winds 5 to 10 Mph.

Tonight 8 Aug Gloucester

Mostly clear. Lows in the upper 50s. East Winds 5 to 10 Mph, becoming northeast after midnight.

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Williamstown Temperature Statistics

August Temperature

Philadelphia, Philadelphia International Airport (17.4 miles)

  • Lowest 2 August, 2025

    64.7 °F

  • Average August

    74.8 °F

  • Highest 4 August, 2025

    89.7 °F

Climate (2020–Present)

Philadelphia, Philadelphia International Airport (17.4 miles)

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  • Average Low 2020–2025

    50.3 °F

  • Average 2020–2025

    58.4 °F

  • Average High 2020–2025

    66.9 °F
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