Valley Forge Weather Forecast

    • 57
    • 67

    Chance Rain Showers

    • 58
    • 73

    Partly Sunny

    • 61
    • 77

    Partly Sunny

    • 64
    • 81

    Partly Sunny

    • 56
    • 80

    Mostly Cloudy

    • 53
    • 70

    Mostly Cloudy

Today 28 Sep Western Chester

Mostly cloudy. A chance of Showers in the morning. Highs in the mid 60s. North Winds 5 to 10 Mph. Chance of rain 50 percent.

Tonight 28 Sep Western Chester

Mostly cloudy in the Evening, then becoming partly cloudy. Lows in the upper 50s. Northwest Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Valley Forge Temperature Statistics

September Temperature

Pottstown, Pottstown Limerick Airport (10.6 miles)

  • Lowest 15 September, 2026

    48 °F

  • Average September

    69 °F

  • Highest 1 September, 2026

    88 °F

Climate (2021–2026)

Pottstown, Pottstown Limerick Airport (10.6 miles)

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  • Average Low 2021–2026

    44.6 °F

  • Average 2021–2026

    54.7 °F

  • Average High 2021–2026

    64.5 °F
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