Merion Park Weather Forecast

    • 70
    • 91

    Chance Thunderstorms

    • 69
    • 80

    Chance Thunderstorms

    • 71
    • 88

    Chance Thunderstorms

    • 66
    • 86

    Slight Chance Thunderstorms

    • 63
    • 82

    Partly Sunny

    • 61
    • 80

    Mostly Sunny

Today 1 Sep Eastern Montgomery

Partly sunny. A slight chance of Showers this Morning, then a chance of Showers and Thunderstorms this afternoon. Some Thunderstorms may be severe with damaging Winds and large hail. Locally heavy rainfall possible this afternoon. Hot with Highs around 90. Southwest Winds around 5 Mph. Chance of rain 30 percent.

Tonight 1 Sep Eastern Montgomery

Mostly cloudy. Showers and Thunderstorms Likely, mainly in the evening. Some Thunderstorms may be severe with damaging Winds and large hail in the evening. Locally heavy rainfall possible in the evening. Humid with Lows around 70. Northwest Winds around 5 Mph, becoming northeast around 5 Mph after midnight. Chance of rain 60 percent.

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Merion Park Temperature Statistics

September Temperature

Philadelphia, Philadelphia International Airport (8.1 miles)

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Climate (2021–2026)

Philadelphia, Philadelphia International Airport (8.1 miles)

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  • Average Low 2021–2026

    50.2 °F

  • Average 2021–2026

    58.5 °F

  • Average High 2021–2026

    67.2 °F
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