Irwin Weather Forecast

    • 49
    • 68

    Mostly Cloudy

    • 47
    • 71

    Mostly Sunny

    • 52
    • 73

    Mostly Sunny

    • 43
    • 69

    Partly Sunny

    • 48
    • 68

    Mostly Cloudy

    • 52
    • 68

    Chance Rain Showers

Today 27 Oct Westmoreland

Partly sunny. Near steady temperature in the upper 60s. Northeast Winds around 5 Mph.

Tonight 27 Oct Westmoreland

Partly cloudy in the Evening, then becoming mostly cloudy. Lows in the upper 40s. East Winds around 5 Mph.

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Irwin Temperature Statistics

October Temperature

Pittsburgh - Allegheny County Airport (11.2 miles)

  • Lowest 18 October, 2026

    30.9 °F

  • Average October

    57.1 °F

  • Highest 13 October, 2026

    82 °F

Climate (2021–2026)

Pittsburgh - Allegheny County Airport (11.2 miles)

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  • Average Low 2021–2026

    45.9 °F

  • Average 2021–2026

    54.6 °F

  • Average High 2021–2026

    63.2 °F
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