Irwin Weather Forecast

    • 48
    • 72

    Decreasing Clouds

    • 43
    • 75

    Chance Rain Showers

    • 42
    • 63

    Partly Sunny

    • 61
    • 79

    Mostly Cloudy

    • 62
    • 78

    Slight Chance Rain Showers

    • 63
    • 84

    Chance Rain Showers

Today 9 Apr Westmoreland

Mostly sunny. Warm with Highs in the lower 70s. South Winds 5 to 10 Mph.

Tonight 9 Apr Westmoreland

Mainly clear. Lows in the upper 40s. South Winds 5 to 10 Mph.

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Irwin Temperature Statistics

April Temperature

Pittsburgh - Allegheny County Airport (11.2 miles)

  • Lowest 6 April, 2026

    35.1 °F

  • Average April

    59 °F

  • Highest 4 April, 2026

    82 °F

Climate (2021–Present)

Pittsburgh - Allegheny County Airport (11.2 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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