West Newton Weather Forecast

    • 66
    • 83

    Rain Showers

    • 59
    • 82

    Rain Showers Likely

    • 54
    • 73

    Partly Sunny

    • 61
    • 80

    Partly Sunny

    • 66
    • 85

    Partly Sunny

    • 61
    • 81

    Rain Showers Likely

Today 12 Sep Westmoreland

Partly sunny in the Morning, then mostly cloudy with Showers likely with a chance of Thunderstorms in the afternoon. Some Thunderstorms may produce heavy rainfall in the afternoon. Humid with Highs in the lower 80s. South Winds 5 to 10 Mph. Chance of rain 70 percent.

Tonight 12 Sep Westmoreland

Showers with a chance of Thunderstorms in the Evening, then Showers likely with a slight chance of Thunderstorms after midnight. Some Thunderstorms may produce heavy rainfall in the evening. Some Thunderstorms may produce heavy rainfall after midnight. Warm with Lows in the mid 60s. South Winds around 5 Mph. Chance of rain near 100 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

West Newton Temperature Statistics

September Temperature

Pittsburgh - Allegheny County Airport (12.4 miles)

  • Lowest 6 September, 2026

    57.9 °F

  • Average September

    73.5 °F

  • Highest 2 September, 2026

    91 °F

Climate (2021–2026)

Pittsburgh - Allegheny County Airport (12.4 miles)

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  • Average Low 2021–2026

    46 °F

  • Average 2021–2026

    54.7 °F

  • Average High 2021–2026

    63.3 °F
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