West Mifflin Weather Forecast

    • 31
    • 43

    Mostly Cloudy

    • 38
    • 50

    Rain

    • 33
    • 45

    Mostly Cloudy

    • 42
    • 55

    Rain

    • 39
    • 56

    Rain Likely

    • 27
    • 48

    Chance Rain

Today 5 Jan Allegheny

Partly sunny. Highs in the lower 40s. Southeast Winds around 5 Mph, becoming southwest in the afternoon.

Tonight 5 Jan Allegheny

Mostly cloudy. Lows in the lower 30s. Southwest Winds around 5 Mph.

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West Mifflin Temperature Statistics

January Temperature

Pittsburgh - Allegheny County Airport (2.5 miles)

  • Lowest 1 January, 2026

    12.9 °F

  • Average January

    18.4 °F

  • Highest 1 January, 2026

    30.9 °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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