Mifflinburg Weather Forecast

    • 66
    • 91

    Slight Chance Thunderstorms

    • 69
    • 90

    Slight Chance Thunderstorms

    • 49
    • 84

    Rain Showers

    • 46
    • 66

    Mostly Cloudy

    • 48
    • 65

    Rain Showers

    • 52
    • 63

    Rain Showers Likely

    • 55
    • 70

    Chance Rain Showers

Today 18 May Union

Sunny, hot. Near steady temperature in the lower 90s. Southwest Winds 5 to 10 Mph with Gusts up to 20 Mph.

Tonight 18 May Union

Partly cloudy. A slight chance of Showers and Thunderstorms this evening. Lows in the mid 60s. Southwest Winds around 5 Mph. Chance of rain 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Mifflinburg Temperature Statistics

May Temperature

Selinsgrove Penn Valley Airport (11.2 miles)

  • Lowest 12 May, 2026

    32 °F

  • Average May

    54.2 °F

  • Highest 5 May, 2026

    80.1 °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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