Colwyn Weather Forecast

    • 71
    • 94

    Mostly Sunny

    • 75
    • 97

    Hot

    • 59
    • 94

    Rain Showers

    • 53
    • 71

    Chance Rain Showers

    • 53
    • 67

    Rain Showers Likely

    • 57
    • 70

    Rain Showers Likely

Today 18 May Delaware

Sunny, hot with Highs in the lower 90s. South Winds 5 to 10 Mph.

Tonight 18 May Delaware

Mostly clear. Lows in the upper 60s. South Winds 5 to 10 Mph.

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Colwyn Temperature Statistics

May Temperature

Philadelphia, Philadelphia International Airport (2.5 miles)

  • Lowest 1 May, 2026

    47.6 °F

  • Average May

    62.6 °F

  • Highest 5 May, 2026

    86.6 °F

Climate (2021–Present)

Philadelphia, Philadelphia International Airport (2.5 miles)

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  • Average Low 2021–2026

    50.2 °F

  • Average 2021–2026

    58.4 °F

  • Average High 2021–2026

    67 °F
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