West Mifflin Weather Forecast

    • 72
    • 90

    Chance Rain Showers

    • 73
    • 92

    Chance Rain Showers

    • 70
    • 90

    Rain Showers Likely

    • 66
    • 86

    Rain Showers Likely

    • 62
    • 82

    Mostly Sunny

    • 62
    • 80

    Mostly Sunny

Today 1 Sep Allegheny

Partly sunny in the Morning, then becoming partly cloudy. A slight chance of Showers and Thunderstorms. Unseasonably warm. Humid with Highs in the upper 80s. Southwest Winds 10 to 15 Mph. Chance of rain 20 percent. Heat index Values in the upper 90s in the afternoon.

Tonight 1 Sep Allegheny

Partly cloudy with a slight chance of Showers and Thunderstorms in the Evening, then mostly cloudy with a chance of Showers and Thunderstorms after midnight. Warm with Lows in the lower 70s. Southwest Winds 5 to 10 Mph. Chance of rain 40 percent.

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West Mifflin Temperature Statistics

September Temperature

Pittsburgh - Allegheny County Airport (2.5 miles)

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Climate (2021–2026)

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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