Colwyn Weather Forecast

    • 27
    • 44

    Partly Sunny

    • 44
    • 46

    Rain

    • 27
    • 57

    Rain Likely

    • 35
    • 41

    Mostly Cloudy

    • 26
    • 48

    Partly Sunny

    • 27
    • 37

    Partly Sunny

    • 34
    • 43

    Slight Chance Rain

Today 17 Dec Delaware

Partly sunny and not as cool. Near steady temperature in the mid 40s. Southwest Winds 5 to 10 Mph with Gusts up to 20 Mph.

Tonight 17 Dec Delaware

Mostly cloudy. Patchy fog after midnight. Cold with Lows in the upper 20s. West Winds 5 to 10 Mph, becoming north after midnight.

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Colwyn Temperature Statistics

December Temperature

Philadelphia, Philadelphia International Airport (2.5 miles)

  • Lowest 9 December, 2025

    18 °F

  • Average December

    33.8 °F

  • Highest 10 December, 2025

    46.9 °F

Climate (2020–Present)

Philadelphia, Philadelphia International Airport (2.5 miles)

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  • Average Low 2020–2025

    50.3 °F

  • Average 2020–2025

    58.4 °F

  • Average High 2020–2025

    66.9 °F
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