Mifflinburg Weather Forecast

    • 59
    • 77

    Increasing Clouds

    • 62
    • 75

    Rain Showers Likely

    • 57
    • 77

    Slight Chance Thunderstorms

    • 55
    • 74

    Mostly Sunny

    • 58
    • 75

    Partly Sunny

    • 63
    • 79

    Chance Rain Showers

Today 21 Aug Union

Widespread dense fog this morning. Sunny. Visibility one quarter mile or less at Times this morning. Highs in the upper 70s. Northeast Winds around 5 Mph.

Tonight 21 Aug Union

Mostly clear in the Evening, then becoming partly cloudy. Patchy fog after midnight. Lows in the upper 50s. Light and variable Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Mifflinburg Temperature Statistics

August Temperature

Selinsgrove Penn Valley Airport (11.2 miles)

  • Lowest 4 August, 2026

    57 °F

  • Average August

    73.5 °F

  • Highest 17 August, 2026

    89.1 °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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