Willow Grove Weather Forecast

    • 61
    • 69

    Rain Showers Likely

    • 60
    • 80

    Partly Sunny

    • 56
    • 82

    Mostly Sunny

    • 53
    • 75

    Mostly Sunny

    • 54
    • 76

    Partly Sunny

    • 60
    • 79

    Partly Sunny

Today 17 Sep Eastern Montgomery

Cloudy. A chance of Showers with a slight chance of Thunderstorms late this Morning, then Showers likely with a chance of Thunderstorms this afternoon. Highs in the upper 60s. Northeast Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 70 percent.

Tonight 17 Sep Eastern Montgomery

Cloudy. A chance of Showers and Thunderstorms in the Evening, then a slight chance of Showers after midnight. Humid with Lows in the lower 60s. Northeast Winds 5 to 10 Mph. Chance of rain 50 percent.

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Willow Grove Temperature Statistics

September Temperature

Philadelphia, Northeast Philadelphia Airport (6.8 miles)

  • Lowest 8 September, 2025

    53.1 °F

  • Average September

    69.7 °F

  • Highest 6 September, 2025

    87.1 °F

Climate (2020–Present)

Philadelphia, Northeast Philadelphia Airport (6.8 miles)

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  • Average Low 2020–2025

    48.5 °F

  • Average 2020–2025

    57.6 °F

  • Average High 2020–2025

    66.6 °F
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