Mifflinburg Weather Forecast

    • 45
    • 70

    Mostly Sunny

    • 52
    • 72

    Mostly Sunny

    • 62
    • 80

    Partly Sunny

    • 66
    • 82

    Chance Rain Showers

    • 59
    • 78

    Partly Sunny

    • 63
    • 76

    Chance Rain Showers

    • 59
    • 78

    Chance Rain Showers

Today 14 Sep Union

Sunny and not as warm. Near steady temperature in the upper 60s. North Winds 5 to 10 Mph.

Tonight 14 Sep Union

Mostly clear. Patchy fog after midnight. Cooler with Lows in the mid 40s. North Winds 5 to 10 Mph, becoming northeast after midnight.

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Mifflinburg Temperature Statistics

September Temperature

Selinsgrove Penn Valley Airport (11.2 miles)

  • Lowest 8 September, 2026

    50 °F

  • Average September

    70.2 °F

  • Highest 1 September, 2026

    90 °F

Climate (2021–2026)

Selinsgrove Penn Valley Airport (11.2 miles)

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  • Average Low 2021–2026

    42.3 °F

  • Average 2021–2026

    52.7 °F

  • Average High 2021–2026

    63.1 °F
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