Merion Park Weather Forecast

    • 61
    • 73

    Chance Rain Showers

    • 62
    • 81

    Partly Sunny

    • 64
    • 83

    Mostly Cloudy

    • 55
    • 78

    Mostly Sunny

    • 56
    • 76

    Partly Sunny

    • 54
    • 75

    Partly Sunny

Today 25 May Eastern Montgomery

Cloudy. Showers with a slight chance of Thunderstorms this Morning, then a chance of Showers this afternoon. Patchy fog. Warmer with Highs in the lower 70s. South Winds around 5 Mph, becoming west around 5 Mph this afternoon. Chance of rain 80 percent.

Tonight 25 May Eastern Montgomery

Mostly cloudy. Patchy fog. Lows around 60. Southwest Winds around 5 Mph, becoming north after midnight.

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Merion Park Temperature Statistics

May Temperature

Philadelphia, Philadelphia International Airport (8.1 miles)

  • Lowest 1 May, 2026

    47.6 °F

  • Average May

    65.6 °F

  • Highest 19 May, 2026

    98.7 °F

Climate (2021–Present)

Philadelphia, Philadelphia International Airport (8.1 miles)

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  • Average Low 2021–2026

    50.2 °F

  • Average 2021–2026

    58.4 °F

  • Average High 2021–2026

    67 °F
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