Wallace Weather Forecast

    • 64
    • 82

    Gradual Clearing

    • 50
    • 74

    Mostly Sunny

    • 54
    • 75

    Mostly Sunny

    • 61
    • 80

    Mostly Sunny

    • 62
    • 83

    Partly Sunny

    • 61
    • 82

    Chance Rain Showers

Today 13 Sep Western Chester

Mostly cloudy with Showers with a chance of Thunderstorms this Morning, then mostly sunny this afternoon. Locally heavy rainfall possible this morning. Highs in the lower 80s. Northwest Winds around 5 Mph. Chance of rain 80 percent.

Tonight 13 Sep Western Chester

Mostly clear in the Evening, then becoming partly cloudy. Humid with Lows in the mid 60s. West Winds 5 to 10 Mph.

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Wallace Temperature Statistics

September Temperature

Chester County Airport (9.3 miles)

  • Lowest 8 September, 2026

    54.9 °F

  • Average September

    72.4 °F

  • Highest 1 September, 2026

    87.3 °F

Climate (2021–2026)

Chester County Airport (9.3 miles)

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  • Average Low 2021–2026

    45.9 °F

  • Average 2021–2026

    54.4 °F

  • Average High 2021–2026

    63 °F
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