Irwin Weather Forecast

    • 28
    • 38

    Decreasing Clouds

    • 38
    • 47

    Rain Showers

    • 24
    • 44

    Rain/Snow

    • 15
    • 29

    Snow Showers

    • 20
    • 29

    Snow Showers

    • 15
    • 35

    Snow Showers

Today 12 Jan Westmoreland

Considerable cloudiness this Morning, then becoming mostly sunny. Highs in the upper 30s. Southwest Winds 15 to 20 Mph with Gusts up to 30 Mph.

Tonight 12 Jan Westmoreland

Mainly clear. Lows in the upper 20s. Southwest Winds 10 to 15 Mph with Gusts up to 25 Mph.

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Irwin Temperature Statistics

January Temperature

Pittsburgh - Allegheny County Airport (11.2 miles)

  • Lowest 3 January, 2026

    12 °F

  • Average January

    34.5 °F

  • Highest 9 January, 2026

    64.9 °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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