Merion Park Weather Forecast

    • 60
    • 86

    Rain Showers

    • 54
    • 72

    Partly Sunny

    • 54
    • 75

    Mostly Sunny

    • 57
    • 76

    Partly Sunny

    • 57
    • 74

    Partly Sunny

    • 56
    • 80

    Partly Sunny

Today 6 Sep Eastern Montgomery

Mostly sunny in the Morning, then mostly cloudy with Showers and Thunderstorms likely in the afternoon. Some Thunderstorms may produce damaging Winds and heavy rainfall in the afternoon. Hot with Highs in the mid 80s. Southwest Winds 10 to 15 Mph. Chance of rain 70 percent.

Tonight 6 Sep Eastern Montgomery

Showers and Thunderstorms likely in the Evening, then a chance of Showers after midnight. Some Thunderstorms may be severe with damaging Winds and heavy rainfall in the evening. Lows in the upper 50s. Northwest Winds 5 to 10 Mph. Chance of rain 70 percent.

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Merion Park Temperature Statistics

September Temperature

Philadelphia, Philadelphia International Airport (8.1 miles)

  • Lowest 2 September, 2025

    61 °F

  • Average September

    70.5 °F

  • Highest 1 September, 2025

    81 °F

Climate (2020–Present)

Philadelphia, Philadelphia International Airport (8.1 miles)

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  • Average Low 2020–2025

    50.3 °F

  • Average 2020–2025

    58.4 °F

  • Average High 2020–2025

    66.9 °F
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