Mifflinburg Weather Forecast

    • 51
    • 68

    Rain Showers

    • 48
    • 60

    Rain Showers

    • 47
    • 62

    Chance Rain Showers

    • 47
    • 61

    Mostly Cloudy

    • 47
    • 65

    Partly Sunny

    • 49
    • 68

    Partly Sunny

Today 21 Sep Union

Cloudy. Patchy fog in the morning. A chance of Showers in the afternoon. Highs in the upper 60s. Northeast Winds 5 to 10 Mph. Chance of rain 50 percent.

Tonight 21 Sep Union

Showers likely in the Evening, then Showers after midnight. Lows in the lower 50s. Northeast Winds 5 to 10 Mph. Chance of rain 90 percent.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Mifflinburg Temperature Statistics

September Temperature

Selinsgrove Penn Valley Airport (11.2 miles)

  • Lowest 15 September, 2026

    46 °F

  • Average September

    69.3 °F

  • Highest 1 September, 2026

    90 °F

Climate (2021–2026)

Selinsgrove Penn Valley Airport (11.2 miles)

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

  • Average Low 2021–2026

    42.3 °F

  • Average 2021–2026

    52.7 °F

  • Average High 2021–2026

    63.1 °F
Get WillyWeather+ to remove ads