Mifflinburg Weather Forecast

    • 59
    • 81

    Mostly Cloudy

    • 70
    • 85

    Chance Rain Showers

    • 58
    • 79

    Rain Showers Likely

    • 54
    • 75

    Mostly Sunny

    • 63
    • 76

    Slight Chance Rain Showers

    • 62
    • 81

    Slight Chance Thunderstorms

Today 8 Sep Union

Partly sunny. Highs in the lower 80s. South Winds around 5 Mph.

Tonight 8 Sep Union

Mostly cloudy. Lows around 60. Light and variable Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Mifflinburg Temperature Statistics

September Temperature

Selinsgrove Penn Valley Airport (11.2 miles)

  • Lowest 6 September, 2026

    55 °F

  • Average September

    72.6 °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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