West Mifflin Weather Forecast

    • 30
    • 39

    Rain/Snow

    • 17
    • 35

    Mostly Cloudy

    • 1
    • 24

    Mostly Cloudy

    • 8
    • 13

    Snow Likely

    • 7
    • 21

    Chance Snow

    • 6
    • 21

    Slight Chance Snow

Today 21 Jan Allegheny

Partly sunny in the Morning, then cloudy with snow with rain likely in the afternoon. Little or no snow accumulation. Highs in the upper 30s. South Winds 10 to 15 Mph, becoming southwest 15 to 20 Mph in the afternoon. Chance of precipitation 90 percent.

Tonight 21 Jan Allegheny

Considerable cloudiness. Snow and rain Likely, mainly in the evening. Little or no snow accumulation. Not as cold with Lows around 30. Southwest Winds 10 to 15 Mph with Gusts up to 30 Mph. Chance of precipitation 70 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

West Mifflin Temperature Statistics

January Temperature

Pittsburgh - Allegheny County Airport (2.5 miles)

  • Lowest 3 January, 2026

    12 °F

  • Average January

    32 °F

  • Highest 9 January, 2026

    64.9 °F

Climate (2021–Present)

Pittsburgh - Allegheny County Airport (2.5 miles)

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  • Average Low 2021–2026

    46 °F

  • Average 2021–2026

    54.6 °F

  • Average High 2021–2026

    63.3 °F
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