Philadelphia International Airport Weather Forecast

    • 58
    • 77

    Mostly Sunny

    • 65
    • 82

    Mostly Sunny

    • 68
    • 85

    Partly Sunny

    • 66
    • 85

    Partly Sunny

    • 68
    • 82

    Chance Rain Showers

    • 66
    • 83

    Chance Rain Showers

Today 15 Sep Delaware

Sunny. Highs in the mid 70s. Northeast Winds around 5 Mph, becoming southeast in the afternoon.

Tonight 15 Sep Delaware

Mostly clear. Lows in the mid 50s. Southeast Winds around 5 Mph.

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Philadelphia International Airport Temperature Statistics

September Temperature

Philadelphia, Philadelphia International Airport (0.6 miles)

  • Lowest 8 September, 2026

    64.7 °F

  • Average September

    78.2 °F

  • Highest 1 September, 2026

    93.7 °F

Climate (2021–2026)

Philadelphia, Philadelphia International Airport (0.6 miles)

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  • Average Low 2021–2026

    50.3 °F

  • Average 2021–2026

    58.6 °F

  • Average High 2021–2026

    67.2 °F
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