Irwin Weather Forecast

    • 38
    • 52

    Chance Rain Showers

    • 33
    • 53

    Chance Rain Showers

    • 32
    • 55

    Partly Sunny

    • 35
    • 58

    Partly Sunny

    • 36
    • 57

    Partly Sunny

    • 39
    • 56

    Chance Rain Showers

Today 23 Oct Westmoreland

Considerable cloudiness. A chance of Sprinkles in the Morning, then a slight chance of Showers in the afternoon. Highs in the lower 50s. Southwest Winds 15 to 20 Mph with Gusts up to 30 Mph. Chance of rain 20 percent.

Tonight 23 Oct Westmoreland

Mostly cloudy in the Evening, then becoming partly cloudy. A 40 percent chance of Showers. Lows in the mid 30s. Southwest Winds 10 to 15 Mph.

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Irwin Temperature Statistics

October Temperature

Pittsburgh - Allegheny County Airport (11.2 miles)

  • Lowest 17 October, 2025

    39 °F

  • Average October

    58.9 °F

  • Highest 6 October, 2025

    81 °F

Climate (2020–Present)

Pittsburgh - Allegheny County Airport (11.2 miles)

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  • Average Low 2020–2025

    46.2 °F

  • Average 2020–2025

    54.8 °F

  • Average High 2020–2025

    63.4 °F
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