Valley Forge Weather Forecast

    • 23
    • 45

    Decreasing Clouds

    • 28
    • 39

    Mostly Cloudy

    • 33
    • 47

    Chance Rain

    • 30
    • 44

    Mostly Cloudy

    • 37
    • 45

    Chance Rain

    • 34
    • 54

    Cloudy

Today 21 Dec Western Chester

Partly sunny in the Morning, then clearing. Highs in the lower 40s. Temperature falling into the mid 30s in the afternoon. West Winds 10 to 15 Mph with Gusts up to 30 Mph.

Tonight 21 Dec Western Chester

Mostly clear. Cold with Lows in the lower 20s. Northwest Winds 10 to 15 Mph with Gusts up to 25 Mph.

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Valley Forge Temperature Statistics

December Temperature

Pottstown, Pottstown Limerick Airport (10.6 miles)

  • Lowest 16 December, 2025

    9 °F

  • Average December

    28.9 °F

  • Highest 18 December, 2025

    48.9 °F

Climate (2020–Present)

Pottstown, Pottstown Limerick Airport (10.6 miles)

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  • Average Low 2020–2025

    44.8 °F

  • Average 2020–2025

    54.7 °F

  • Average High 2020–2025

    64.6 °F
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