William Penn State Forest Weather Forecast

    • 62
    • 89

    Rain Showers Likely

    • 55
    • 78

    Mostly Sunny

    • 60
    • 77

    Mostly Sunny

    • 62
    • 82

    Chance Thunderstorms

    • 66
    • 90

    Rain Showers Likely

    • 60
    • 82

    Slight Chance Thunderstorms

    • 60
    • 82

    Mostly Sunny

Today 14 Jun Western Chester

Partly sunny. A slight chance of Showers and Thunderstorms this afternoon. Some Thunderstorms may produce damaging Winds this afternoon. Locally heavy rainfall possible this afternoon. Hot with Highs in the upper 80s. Southwest Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 20 percent.

Tonight 14 Jun Western Chester

A chance of Thunderstorms. Showers. Some Thunderstorms may be severe with damaging Winds, large Hail, frequent Lightning, and heavy rainfall. Locally heavy rainfall possible. Lows in the lower 60s. South Winds 5 to 10 Mph, becoming west 10 to 15 Mph after midnight. Chance of rain 90 percent.

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William Penn State Forest Temperature Statistics

June Temperature

Phillips Army Air Field / Aberdeen (18 miles)

  • Lowest 2 June, 2026

    46.4 °F

  • Average June

    75.2 °F

  • Highest 11 June, 2026

    93.2 °F

Climate (2021–Present)

Phillips Army Air Field / Aberdeen (18 miles)

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  • Average Low 2021–2026

    47.7 °F

  • Average 2021–2026

    57.8 °F

  • Average High 2021–2026

    65.5 °F
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