Irwin Weather Forecast

    • 33
    • 45

    Rain

    • 35
    • 48

    Mostly Cloudy

    • 43
    • 57

    Mostly Cloudy

    • 44
    • 58

    Rain

    • 44
    • 61

    Rain Likely

    • 34
    • 59

    Chance Rain

    • 28
    • 46

    Slight Chance Rain

Today 15 Feb Westmoreland

Rain. Patchy fog. Near steady temperature in the mid 40s. Southeast Winds around 5 Mph. Chance of rain 90 percent.

Tonight 15 Feb Westmoreland

Mostly cloudy. Areas of fog. Lows in the lower 30s. East Winds around 5 Mph this Evening, becoming light and variable.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Irwin Temperature Statistics

February Temperature

Pittsburgh - Allegheny County Airport (11.2 miles)

  • Lowest 1 February, 2026

    1.9 °F

  • Average February

    21.7 °F

  • Highest 10 February, 2026

    55 °F

Climate (2021–Present)

Pittsburgh - Allegheny County Airport (11.2 miles)

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  • Average Low 2021–2026

    45.8 °F

  • Average 2021–2026

    54.4 °F

  • Average High 2021–2026

    63.2 °F
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