Delaware River - Philadelphia Weather Forecast

    • 65
    • 84

    Chance Rain Showers

    • 63
    • 82

    Mostly Sunny

    • 65
    • 83

    Mostly Sunny

    • 68
    • 86

    Partly Sunny

    • 69
    • 86

    Chance Rain Showers

    • 70
    • 86

    Chance Rain Showers

Today 23 Aug Philadelphia

Mostly sunny. A chance of Showers with a slight chance of Thunderstorms in the morning. Patchy fog in the morning. Humid with Highs in the mid 80s. South Winds around 5 Mph, becoming west in the afternoon. Chance of rain 40 percent.

Tonight 23 Aug Philadelphia

Mostly clear. Lows in the mid 60s. West Winds around 5 Mph.

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Delaware River - Philadelphia Temperature Statistics

August Temperature

Philadelphia, Philadelphia International Airport (5.6 miles)

  • Lowest 16 August, 2026

    68.6 °F

  • Average August

    82 °F

  • Highest 7 August, 2026

    94.6 °F

Climate (2021–2026)

Philadelphia, Philadelphia International Airport (5.6 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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