Irwin Weather Forecast

    • 35
    • 68

    Mostly Sunny

    • 35
    • 67

    Sunny

    • 39
    • 66

    Mostly Sunny

    • 36
    • 62

    Mostly Sunny

    • 38
    • 63

    Mostly Sunny

    • 41
    • 66

    Partly Sunny

Today 20 Oct Westmoreland

Areas of frost with patchy fog in the morning. Sunny. Highs in the upper 60s. Northeast Winds 5 to 10 Mph.

Tonight 20 Oct Westmoreland

Clear. Patchy fog after midnight. Lows in the mid 30s. Northeast Winds around 5 Mph.

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Irwin Temperature Statistics

October Temperature

Pittsburgh - Allegheny County Airport (11.2 miles)

  • Lowest 7 October, 2026

    41 °F

  • Average October

    59.8 °F

  • Highest 13 October, 2026

    82 °F

Climate (2021–2026)

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

    63.2 °F
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