Mifflinburg Weather Forecast

    • 23
    • 28

    Chance Snow

    • 26
    • 40

    Rain/Sleet

    • 21
    • 33

    Mostly Cloudy

    • 21
    • 33

    Chance Snow

    • 20
    • 33

    Chance Snow

    • 12
    • 28

    Partly Sunny

Today 9 Dec Union

Mostly sunny this Morning, then becoming mostly cloudy. Highs in the upper 20s. South Winds 5 to 10 Mph.

Tonight 9 Dec Union

Mostly cloudy. A chance of snow after midnight. Little or no snow accumulation. Not as cool with Lows in the lower 20s. South Winds 5 to 10 Mph with Gusts up to 20 Mph. Chance of snow 40 percent.

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  • Temperature Real-Time

Mifflinburg Temperature Statistics

December Temperature

Selinsgrove Penn Valley Airport (11.2 miles)

  • Lowest 5 December, 2025

    8.1 °F

  • Average December

    29.6 °F

  • Highest 1 December, 2025

    39 °F

Climate (2020–Present)

Selinsgrove Penn Valley Airport (11.2 miles)

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  • Average Low 2020–2025

    42.5 °F

  • Average 2020–2025

    52.7 °F

  • Average High 2020–2025

    63.1 °F
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