Colwyn Weather Forecast

    • 72
    • 92

    Severe Tstms

    • 72
    • 85

    Rain Showers Likely

    • 73
    • 92

    Chance Thunderstorms

    • 67
    • 87

    Partly Sunny

    • 65
    • 83

    Partly Sunny

    • 63
    • 81

    Partly Sunny

Today 1 Sep Delaware

Partly sunny. A chance of Showers and Thunderstorms this afternoon. Some Thunderstorms may be severe with damaging Winds and large hail. Locally heavy rainfall possible this afternoon. Hot with Highs in the lower 90s. Southwest Winds around 5 Mph. Chance of rain 30 percent.

Tonight 1 Sep Delaware

Mostly cloudy. A chance of Showers and Thunderstorms. Some Thunderstorms may be severe with damaging Winds and large hail in the evening. Locally heavy rainfall possible in the evening. Humid with Lows in the lower 70s. West Winds around 5 Mph, becoming northeast around 5 Mph after midnight. Chance of rain 50 percent.

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Colwyn Temperature Statistics

September Temperature

Philadelphia, Philadelphia International Airport (2.5 miles)

  • Lowest

  • Average September

  • Highest

Climate (2021–2026)

Philadelphia, Philadelphia International Airport (2.5 miles)

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  • Average Low 2021–2026

    50.2 °F
  • Average 2021–2026

    58.6 °F
  • Average High 2021–2026

    67.2 °F
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