Parnassus Weather Forecast

    • 67
    • 87

    Rain Showers Likely

    • 66
    • 87

    Partly Sunny

    • 69
    • 89

    Rain Showers Likely

    • 66
    • 84

    Rain Showers

    • 63
    • 82

    Rain Showers Likely

    • 59
    • 82

    Chance Thunderstorms

Today 8 Aug Westmoreland

Mostly cloudy in the Morning, then becoming partly cloudy. A slight chance of Thunderstorms. A chance of Showers, mainly in the morning. Humid with Highs in the mid 80s. Southwest Winds 10 to 15 Mph. Chance of rain 50 percent.

Tonight 8 Aug Westmoreland

Mostly cloudy with a chance of Thunderstorms. A chance of Showers in the Evening, then Showers likely after midnight. Humid with Lows in the upper 60s. Southwest Winds 10 to 15 Mph, Diminishing to around 5 Mph after midnight. 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

    73.2 °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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