Mifflinburg Weather Forecast

    • 50
    • 75

    Mostly Sunny

    • 50
    • 75

    Mostly Sunny

    • 51
    • 73

    Slight Chance Thunderstorms

    • 53
    • 76

    Mostly Sunny

    • 58
    • 82

    Mostly Sunny

    • 62
    • 87

    Partly Sunny

Today 31 May Union

Sunny, warmer with Highs in the mid 70s. Northwest Winds around 5 Mph.

Tonight 31 May Union

Partly cloudy in the Evening, then clearing. Lows around 50. West Winds around 5 Mph.

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Mifflinburg Temperature Statistics

May Temperature

Selinsgrove Penn Valley Airport (11.2 miles)

  • Lowest 12 May, 2026

    32 °F

  • Average May

    58.8 °F

  • Highest 18 May, 2026

    91 °F

Climate (2021–Present)

Selinsgrove Penn Valley Airport (11.2 miles)

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  • Average Low 2021–2026

    42.3 °F

  • Average 2021–2026

    52.6 °F

  • Average High 2021–2026

    63.1 °F
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