Sweeney Plan Weather Forecast

    • 58
    • 78

    Isolated Thunderstorms

    • 55
    • 78

    Becoming Sunny

    • 56
    • 79

    Mostly Sunny

    • 62
    • 82

    Partly Sunny

    • 68
    • 86

    Chance Rain Showers

    • 58
    • 79

    Chance Rain Showers

    • 55
    • 76

    Mostly Sunny

Today 5 Sep Westmoreland

Partly sunny with a chance of Showers with a slight chance of Thunderstorms. Near steady temperature in the upper 70s. North Winds 5 to 10 Mph. Chance of rain 50 percent.

Tonight 5 Sep Westmoreland

Mainly clear. Lows in the mid 50s. Northeast Winds around 5 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Sweeney Plan Temperature Statistics

September Temperature

Pittsburgh - Allegheny County Airport (13.7 miles)

  • Lowest 3 September, 2026

    66 °F

  • Average September

    78.1 °F

  • Highest 2 September, 2026

    91 °F

Climate (2021–2026)

Pittsburgh - Allegheny County Airport (13.7 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

    63.3 °F
Get WillyWeather+ to remove ads