Irwin Weather Forecast

    • 40
    • 84

    Rain Showers

    • 33
    • 54

    Chance Rain Showers

    • 27
    • 47

    Mostly Sunny

    • 49
    • 63

    Partly Sunny

    • 46
    • 69

    Chance Rain Showers

    • 53
    • 77

    Partly Sunny

Today 18 Apr Westmoreland

Partly cloudy this Morning, then partly sunny with Showers likely with a chance of Thunderstorms this afternoon. Unseasonably warm with Highs in the mid 80s. South Winds 10 to 15 Mph with Gusts up to 25 Mph, becoming southwest with Gusts up to 35 Mph this afternoon. Chance of rain 70 percent.

Tonight 18 Apr Westmoreland

Showers likely with a chance of Thunderstorms in the Evening, then Showers after midnight. Lows around 40. West Winds 10 to 15 Mph with Gusts up to 30 Mph. Chance of rain near 100 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

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

    63.3 °F
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