Parnassus Weather Forecast

    • 34
    • 64

    Becoming Sunny

    • 53
    • 68

    Partly Sunny

    • 46
    • 69

    Rain Showers

    • 44
    • 60

    Slight Chance Thunderstorms

    • 52
    • 71

    Partly Sunny

    • 58
    • 80

    Slight Chance Thunderstorms

Today 11 May Westmoreland

Partly cloudy. Highs in the lower 60s. Northwest Winds 5 to 10 Mph.

Tonight 11 May Westmoreland

Mainly clear. Widespread frost after midnight. Unseasonably cold with Lows in the mid 30s. North Winds 5 to 10 Mph with Gusts up to 20 Mph, becoming northeast after midnight.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Parnassus Temperature Statistics

May Temperature

Pittsburgh - Allegheny County Airport (16.2 miles)

  • Lowest 2 May, 2026

    34 °F

  • Average May

    52.1 °F

  • Highest 5 May, 2026

    73.9 °F

Climate (2021–Present)

Pittsburgh - Allegheny County Airport (16.2 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    46 °F

  • Average 2021–2026

    54.6 °F

  • Average High 2021–2026

    63.4 °F
Get WillyWeather+ to remove ads