Irwin Weather Forecast

    • 55
    • 76

    Slight Chance Thunderstorms

    • 58
    • 81

    Rain Showers Likely

    • 46
    • 71

    Rain Showers

    • 45
    • 67

    Slight Chance Rain Showers

    • 51
    • 72

    Rain Showers Likely

    • 48
    • 70

    Rain Showers Likely

Today 23 Apr Westmoreland

Partly sunny in the Morning, then becoming mostly sunny. Warm with Highs in the upper 70s. West Winds around 5 Mph.

Tonight 23 Apr Westmoreland

Mainly clear. Mild. Lows in the mid 50s. West Winds around 5 Mph, becoming southwest after midnight.

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Irwin Temperature Statistics

April Temperature

Pittsburgh - Allegheny County Airport (11.2 miles)

  • Lowest 8 April, 2026

    26.1 °F

  • Average April

    58.8 °F

  • Highest 15 April, 2026

    82.9 °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

    63.4 °F
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