Union Mills Weather Forecast

    • 9
    • 28

    Partly Sunny

    • 26
    • 33

    Rain/Snow Likely

    • 27
    • 44

    Rain Likely

    • 22
    • 35

    Chance Rain/Snow

    • 18
    • 34

    Chance Snow

    • 15
    • 27

    Chance Snow

Today 8 Dec Mifflin

Mostly cloudy. Colder with Highs in the upper 20s. Northeast Winds 5 to 10 Mph.

Tonight 8 Dec Mifflin

Partly cloudy in the Evening, then clearing. Colder with Lows around 10. Northeast Winds around 5 Mph in the Evening, becoming light and variable.

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Union Mills Temperature Statistics

December Temperature

State College - University Park Airport (18 miles)

  • Lowest 5 December, 2025

    10.4 °F

  • Average December

    27.5 °F

  • Highest 1 December, 2025

    35.6 °F

Climate (2020–Present)

State College - University Park Airport (18 miles)

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  • Average Low 2020–2025

    43 °F

  • Average 2020–2025

    50.3 °F

  • Average High 2020–2025

    60.4 °F
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