Irwin Weather Forecast

    • 65
    • 83

    Mostly Cloudy

    • 64
    • 81

    Rain Showers

    • 52
    • 76

    Partly Sunny

    • 54
    • 77

    Mostly Sunny

    • 61
    • 81

    Partly Sunny

    • 63
    • 84

    Partly Sunny

    • 67
    • 86

    Chance Thunderstorms

Today 20 Jul Westmoreland

Sunny. Highs in the lower 80s. Southwest Winds around 5 Mph.

Tonight 20 Jul Westmoreland

Mostly cloudy. Lows in the mid 60s. South Winds around 5 Mph.

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Irwin Temperature Statistics

July Temperature

Pittsburgh - Allegheny County Airport (11.2 miles)

  • Lowest 17 July, 2026

    66 °F

  • Average July

    77.6 °F

  • Highest 2 July, 2026

    93 °F

Climate (2021–2026)

Pittsburgh - Allegheny County Airport (11.2 miles)

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  • Average Low 2021–2026

    46.1 °F

  • Average 2021–2026

    54.7 °F

  • Average High 2021–2026

    63.4 °F
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