West Mifflin Weather Forecast

    • 70
    • 88

    Smoke

    • 68
    • 85

    Rain Showers

    • 60
    • 82

    Mostly Sunny

    • 68
    • 85

    Chance Rain Showers

    • 65
    • 85

    Chance Thunderstorms

    • 59
    • 80

    Chance Thunderstorms

Today 17 Jul Allegheny

Mostly sunny. Patchy fog in the morning. Smoke. Highs in the upper 80s. Light and variable Winds, becoming north around 5 Mph in the afternoon.

Tonight 17 Jul Allegheny

Mainly clear in the Evening, then mostly cloudy with Showers likely with a slight chance of Thunderstorms after midnight. Smoke. Lows around 70. Southeast Winds around 5 Mph, becoming south after midnight. Chance of rain 70 percent.

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West Mifflin Temperature Statistics

July Temperature

Pittsburgh - Allegheny County Airport (2.5 miles)

  • Lowest 12 July, 2026

    66.9 °F

  • Average July

    77.5 °F

  • Highest 2 July, 2026

    93 °F

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

    63.4 °F
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