Mifflinburg Weather Forecast

    • 17
    • 33

    Increasing Clouds

    • 19
    • 37

    Snow Showers Likely

    • 15
    • 24

    Mostly Cloudy

    • 16
    • 28

    Mostly Cloudy

    • 21
    • 32

    Mostly Cloudy

    • 29
    • 43

    Mostly Cloudy

Today 12 Dec Union

Mostly sunny. Highs in the lower 30s. West Winds around 5 Mph.

Tonight 12 Dec Union

Mostly clear in the Evening, then becoming mostly cloudy. Lows around 20. West Winds around 5 Mph in the Evening, becoming light and variable.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Mifflinburg Temperature Statistics

December Temperature

Selinsgrove Penn Valley Airport (11.2 miles)

  • Lowest 9 December, 2025

    5 °F

  • Average December

    27.9 °F

  • Highest 1 December, 2025

    39 °F

Climate (2020–Present)

Selinsgrove Penn Valley Airport (11.2 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2020–2025

    42.5 °F

  • Average 2020–2025

    52.6 °F

  • Average High 2020–2025

    63.1 °F
Get WillyWeather+ to remove ads