Irwin Weather Forecast

    • 37
    • 48

    Increasing Clouds

    • 50
    • 65

    Chance Rain

    • 21
    • 69

    Rain

    • 17
    • 29

    Slight Chance Snow

    • 31
    • 41

    Mostly Cloudy

    • 34
    • 52

    Mostly Cloudy

Today 14 Mar Westmoreland

Partly sunny in the Morning, then clearing. Highs in the upper 40s. West Winds 15 to 20 Mph with Gusts up to 30 Mph.

Tonight 14 Mar Westmoreland

Mostly cloudy. Lows in the mid 30s. East Winds 5 to 10 Mph with Gusts up to 20 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Irwin Temperature Statistics

March Temperature

Pittsburgh - Allegheny County Airport (11.2 miles)

  • Lowest 2 March, 2026

    19.9 °F

  • Average March

    52.2 °F

  • Highest 7 March, 2026

    78.1 °F

Climate (2021–Present)

Pittsburgh - Allegheny County Airport (11.2 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    46 °F

  • Average 2021–2026

    54.6 °F

  • Average High 2021–2026

    63.3 °F
Get WillyWeather+ to remove ads