Parnassus Weather Forecast

    • 63
    • 80

    Increasing Clouds

    • 68
    • 88

    Partly Sunny

    • 70
    • 90

    Mostly Cloudy

    • 72
    • 92

    Partly Sunny

    • 71
    • 93

    Chance Thunderstorms

    • 66
    • 88

    Chance Rain Showers

Today 29 Aug Westmoreland

Sunny. Highs in the upper 70s. East Winds around 5 Mph.

Tonight 29 Aug Westmoreland

Partly cloudy. Lows in the mid 60s. Southeast Winds around 5 Mph.

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  • Temperature Real-Time

Parnassus Temperature Statistics

August Temperature

Pittsburgh - Allegheny County Airport (16.2 miles)

  • Lowest 24 August, 2026

    55.9 °F

  • Average August

    71.4 °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 °F

  • Average 2021–2026

    54.6 °F

  • Average High 2021–2026

    63.3 °F
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