Mifflinburg Weather Forecast

    • 57
    • 82

    Mostly Sunny

    • 57
    • 82

    Partly Sunny

    • 57
    • 80

    Partly Sunny

    • 57
    • 75

    Mostly Cloudy

    • 58
    • 81

    Mostly Sunny

    • 57
    • 85

    Partly Sunny

Today 14 Sep Union

Sunny. Very warm with Highs in the lower 80s. North Winds around 5 Mph.

Tonight 14 Sep Union

Partly cloudy. Lows in the upper 50s. North Winds around 5 Mph.

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Mifflinburg Temperature Statistics

September Temperature

Selinsgrove Penn Valley Airport (11.2 miles)

  • Lowest 8 September, 2025

    39.9 °F

  • Average September

    62.5 °F

  • Highest 5 September, 2025

    82 °F

Climate (2020–Present)

Selinsgrove Penn Valley Airport (11.2 miles)

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  • Average Low 2020–2025

    42.4 °F

  • Average 2020–2025

    52.6 °F

  • Average High 2020–2025

    63.2 °F
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