West Mifflin Weather Forecast

    • 14
    • 28

    Gradual Clearing

    • 32
    • 36

    Rain/Snow Likely

    • 27
    • 42

    Rain/Snow

    • 20
    • 31

    Chance Snow

    • 18
    • 32

    Snow Likely

    • 15
    • 26

    Chance Snow

    • 12
    • 23

    Mostly Cloudy

Today 8 Dec Allegheny

Considerable cloudiness. Highs in the upper 20s. Northeast Winds 5 to 10 Mph.

Tonight 8 Dec Allegheny

Mostly cloudy this Evening, then clearing. Cold with Lows around 14. East Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

West Mifflin Temperature Statistics

December Temperature

Pittsburgh - Allegheny County Airport (2.5 miles)

  • Lowest 5 December, 2025

    14 °F

  • Average December

    27.7 °F

  • Highest 6 December, 2025

    33.1 °F

Climate (2020–Present)

Pittsburgh - Allegheny County Airport (2.5 miles)

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  • Average Low 2020–2025

    46.1 °F

  • Average 2020–2025

    54.6 °F

  • Average High 2020–2025

    63.3 °F
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