Philadelphia Weather Forecast

    • 64
    • 71

    Rain Showers

    • 64
    • 74

    Rain Showers

    • 62
    • 78

    Chance Rain Showers

    • 61
    • 85

    Mostly Sunny

    • 60
    • 75

    Partly Sunny

    • 59
    • 75

    Partly Sunny

Today 16 Sep Inland Sussex

Showers with a chance of Thunderstorms. Highs around 70. Northeast Winds 15 to 20 Mph with Gusts up to 40 Mph. Chance of rain 90 percent.

Tonight 16 Sep Inland Sussex

Showers likely with a chance of Thunderstorms. Humid. Near steady temperature in the mid 60s. Northeast Winds 15 to 20 Mph with Gusts up to 35 Mph. Chance of rain 70 percent.

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Philadelphia Temperature Statistics

September Temperature

Georgetown - Delaware Coastal Airport (8.1 miles)

  • Lowest 9 September, 2025

    52 °F

  • Average September

    68.2 °F

  • Highest 6 September, 2025

    91.9 °F

Climate (2020–Present)

Georgetown - Delaware Coastal Airport (8.1 miles)

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  • Average Low 2020–2025

    49.3 °F

  • Average 2020–2025

    58.8 °F

  • Average High 2020–2025

    68.5 °F
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