Delaware River - Chester Island Weather Forecast

    • 66
    • 83

    Slight Chance Thunderstorms

    • 67
    • 83

    Chance Rain Showers

    • 68
    • 86

    Partly Sunny

    • 70
    • 88

    Mostly Cloudy

    • 71
    • 86

    Chance Rain Showers

    • 70
    • 86

    Chance Rain Showers

Today 29 Jul Gloucester

Mostly sunny. Highs in the lower 80s. Northwest Winds 5 to 10 Mph.

Tonight 29 Jul Gloucester

Mostly clear in the Evening, then becoming partly cloudy. Humid with Lows in the mid 60s. Northwest Winds 5 to 10 Mph.

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Delaware River - Chester Island Temperature Statistics

July Temperature

Philadelphia, Philadelphia International Airport (6.2 miles)

  • Lowest 26 July, 2026

    64.9 °F

  • Average July

    81.3 °F

  • Highest 2 July, 2026

    103.6 °F

Climate (2021–2026)

Philadelphia, Philadelphia International Airport (6.2 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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