Delaware River - Fort Mifflin Weather Forecast

    • 67
    • 92

    Severe Tstms

    • 68
    • 85

    Mostly Sunny

    • 73
    • 90

    Partly Sunny

    • 76
    • 93

    Partly Sunny

    • 76
    • 96

    Hot

    • 77
    • 97

    Hot

Today 19 Jun Philadelphia

Mostly sunny. Patchy fog this morning. Scattered Showers and Thunderstorms this afternoon. Some Thunderstorms may be severe with damaging Winds, large Hail, and heavy rainfall. Hot with Highs in the lower 90s. Southwest Winds 10 to 15 Mph. Gusts up to 30 Mph this afternoon. Chance of rain 50 percent.

Tonight 19 Jun Philadelphia

Mostly cloudy with scattered Showers and Thunderstorms in the Evening, then partly cloudy after midnight. Some Thunderstorms may be severe with damaging Winds, large Hail, and heavy rainfall. Humid with Lows in the mid 60s. West Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 50 percent.

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Delaware River - Fort Mifflin Temperature Statistics

June Temperature

Philadelphia, Philadelphia International Airport (0.6 miles)

  • Lowest 1 June, 2025

    52.6 °F

  • Average June

    71.4 °F

  • Highest 12 June, 2025

    91 °F

Climate (2020–Present)

Philadelphia, Philadelphia International Airport (0.6 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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