Westmoreland City Weather Forecast

    • 19
    • 44

    Chance Snow Showers

    • 29
    • 46

    Mostly Cloudy

    • 15
    • 36

    Partly Sunny

    • 28
    • 38

    Rain Likely

    • 30
    • 46

    Chance Rain

    • 35
    • 45

    Rain Likely

Today 19 Dec Westmoreland

Rain Showers likely early. Snow Showers likely. Highs in the mid 40s. Temperatures falling into the mid 20s. West Winds 15 to 20 Mph with Gusts up to 35 Mph. Chance of precipitation 70 percent.

Tonight 19 Dec Westmoreland

Considerable cloudiness with a chance of snow Showers in the Evening, then partly cloudy after midnight. Little or no snow accumulation. Brisk with Lows around 19. West Winds 20 to 25 Mph with Gusts up to 35 Mph, Diminishing to 10 to 15 Mph with Gusts up to 25 Mph after midnight. Chance of snow 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Westmoreland City Temperature Statistics

December Temperature

Pittsburgh - Allegheny County Airport (12.4 miles)

  • Lowest 15 December, 2025

    7 °F

  • Average December

    26.7 °F

  • Highest 17 December, 2025

    46.9 °F

Climate (2020–Present)

Pittsburgh - Allegheny County Airport (12.4 miles)

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  • Average Low 2020–2025

    46.1 °F

  • Average 2020–2025

    54.6 °F

  • Average High 2020–2025

    63.2 °F
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