Delaware River - Fort Mifflin Weather Forecast

    • 67
    • 84

    Chance Thunderstorms

    • 65
    • 85

    Partly Sunny

    • 66
    • 86

    Mostly Sunny

    • 73
    • 91

    Sunny

    • 75
    • 96

    Mostly Sunny

    • 74
    • 93

    Partly Sunny

    • 73
    • 90

    Partly Sunny

Today 11 Jul Philadelphia

Mostly cloudy. A slight chance of Showers and Thunderstorms this Morning, then Showers with Thunderstorms likely this afternoon. Highs in the mid 80s. Northeast Winds 5 to 10 Mph. Chance of rain 80 percent.

Tonight 11 Jul Philadelphia

Mostly cloudy with a chance of Showers and Thunderstorms in the Evening, then partly cloudy after midnight. Humid with Lows in the mid 60s. Northeast Winds 5 to 10 Mph. Chance of rain 40 percent.

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  • Temperature Real-Time

Delaware River - Fort Mifflin Temperature Statistics

July Temperature

Philadelphia, Philadelphia International Airport (0.6 miles)

  • Lowest 7 July, 2026

    69.7 °F

  • Average July

    83.2 °F

  • Highest 2 July, 2026

    103.6 °F

Climate (2021–2026)

Philadelphia, Philadelphia International Airport (0.6 miles)

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  • Average Low 2021–2026

    50.2 °F

  • Average 2021–2026

    58.5 °F

  • Average High 2021–2026

    67.1 °F
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