Willistown Weather Forecast

    • 52
    • 75

    Becoming Sunny

    • 55
    • 76

    Mostly Sunny

    • 61
    • 81

    Mostly Sunny

    • 64
    • 83

    Partly Sunny

    • 61
    • 81

    Partly Sunny

    • 61
    • 77

    Chance Rain Showers

Today 14 Sep Eastern Chester

Sunny. Less humid with Highs in the mid 70s. North Winds 10 to 15 Mph.

Tonight 14 Sep Eastern Chester

Clear, cooler with Lows in the lower 50s. North Winds 5 to 10 Mph.

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Willistown Temperature Statistics

September Temperature

Philadelphia, Philadelphia International Airport (14.9 miles)

  • Lowest 8 September, 2026

    64.7 °F

  • Average September

    78.7 °F

  • Highest 1 September, 2026

    93.7 °F

Climate (2021–2026)

Philadelphia, Philadelphia International Airport (14.9 miles)

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  • Average Low 2021–2026

    50.3 °F

  • Average 2021–2026

    58.6 °F

  • Average High 2021–2026

    67.2 °F
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