Mifflinburg Weather Forecast

    • 56
    • 61

    Rain

    • 56
    • 66

    Slight Chance Rain Showers

    • 54
    • 71

    Mostly Cloudy

    • 57
    • 75

    Mostly Cloudy

    • 61
    • 78

    Mostly Cloudy

    • 52
    • 75

    Chance Rain Showers

Today 27 Sep Union

Rain. Highs around 60. North Winds 15 to 20 Mph with Gusts up to 35 Mph. Chance of rain near 100 percent.

Tonight 27 Sep Union

Cloudy with a 50 percent chance of rain. Lows in the mid 50s. North Winds 10 to 15 Mph. Gusts up to 30 Mph in the evening.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Mifflinburg Temperature Statistics

September Temperature

Selinsgrove Penn Valley Airport (11.2 miles)

  • Lowest 24 September, 2026

    41 °F

  • Average September

    67 °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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