Williamstown Weather Forecast

    • 43
    • 69

    Partly Sunny

    • 39
    • 63

    Mostly Sunny

    • 44
    • 66

    Sunny

    • 39
    • 60

    Sunny

    • 40
    • 59

    Mostly Sunny

    • 44
    • 64

    Mostly Sunny

Today 20 Oct Gloucester

Mostly sunny. Highs in the mid 60s.

Tonight 20 Oct Gloucester

Clear. Lows in the mid 40s. North Winds around 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Williamstown Temperature Statistics

October Temperature

Philadelphia, Philadelphia International Airport (17.4 miles)

  • Lowest 18 October, 2026

    42.1 °F

  • Average October

    65.3 °F

  • Highest 2 October, 2026

    87.7 °F

Climate (2021–2026)

Philadelphia, Philadelphia International Airport (17.4 miles)

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  • Average Low 2021–2026

    50.2 °F

  • Average 2021–2026

    58.6 °F

  • Average High 2021–2026

    67.2 °F
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