Parnassus Weather Forecast

    • 64
    • 83

    Rain Showers

    • 65
    • 84

    Rain Showers Likely

    • 64
    • 84

    Chance Rain Showers

    • 55
    • 82

    Partly Sunny

    • 59
    • 80

    Chance Rain Showers

    • 66
    • 84

    Chance Rain Showers

Today 11 Aug Westmoreland

Mostly cloudy. A slight chance of Showers and Thunderstorms this Morning, then a chance of Showers and Thunderstorms this afternoon. Highs in the lower 80s. Southwest Winds 5 to 10 Mph. Chance of rain 50 percent.

Tonight 11 Aug Westmoreland

Showers likely with a chance of Thunderstorms in the Evening, then a chance of Showers with a slight chance of Thunderstorms after midnight. Humid with Lows in the mid 60s. Southwest Winds 5 to 10 Mph. Chance of rain 70 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Parnassus Temperature Statistics

August Temperature

Pittsburgh - Allegheny County Airport (16.2 miles)

  • Lowest 4 August, 2026

    60.1 °F

  • Average August

    73.7 °F

  • Highest 4 August, 2026

    86 °F

Climate (2021–2026)

Pittsburgh - Allegheny County Airport (16.2 miles)

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  • Average Low 2021–2026

    46.1 °F

  • Average 2021–2026

    54.6 °F

  • Average High 2021–2026

    63.3 °F
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