Glen Mills Weather Forecast

    • 22
    • 35

    Increasing Clouds

    • 26
    • 41

    Snow

    • 17
    • 29

    Slight Chance Snow

    • 20
    • 29

    Mostly Cloudy

    • 23
    • 34

    Partly Sunny

    • 32
    • 41

    Mostly Cloudy

Today 12 Dec Delaware

Mostly sunny. Highs in the mid 30s. West Winds 5 to 10 Mph with Gusts up to 20 Mph.

Tonight 12 Dec Delaware

Mostly clear in the Evening, then becoming mostly cloudy. Cold with Lows in the lower 20s. Southwest Winds around 5 Mph.

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Glen Mills Temperature Statistics

December Temperature

Philadelphia, Philadelphia International Airport (13.7 miles)

  • Lowest 9 December, 2025

    18 °F

  • Average December

    34.6 °F

  • Highest 1 December, 2025

    46 °F

Climate (2020–Present)

Philadelphia, Philadelphia International Airport (13.7 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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