Colwyn Weather Forecast

    • 67
    • 85

    Partly Sunny

    • 69
    • 86

    Mostly Cloudy

    • 74
    • 86

    Rain Showers Likely

    • 74
    • 90

    Chance Thunderstorms

    • 73
    • 90

    Chance Thunderstorms

    • 73
    • 89

    Chance Thunderstorms

    • 73
    • 89

    Chance Rain Showers

Today 3 Aug Delaware

Showers likely with a chance of Thunderstorms. Some Thunderstorms may produce heavy rainfall. Near steady temperature in the lower 80s. Southwest Winds 5 to 10 Mph. Chance of rain 70 percent.

Tonight 3 Aug Delaware

Partly cloudy this Evening, then becoming mostly cloudy. Lows in the mid 60s. North Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Colwyn Temperature Statistics

August Temperature

Philadelphia, Philadelphia International Airport (2.5 miles)

  • Lowest 1 August, 2026

    73 °F

  • Average August

    80.7 °F

  • Highest 1 August, 2026

    90 °F

Climate (2021–2026)

Philadelphia, Philadelphia International Airport (2.5 miles)

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  • Average Low 2021–2026

    50.2 °F

  • Average 2021–2026

    58.5 °F

  • Average High 2021–2026

    67.1 °F
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