Pittsburgh Weather Forecast

    • 63
    • 82

    Slight Chance Rain Showers

    • 64
    • 82

    Partly Sunny

    • 68
    • 83

    Rain Showers

    • 63
    • 84

    Slight Chance Thunderstorms

    • 61
    • 78

    Partly Sunny

    • 67
    • 85

    Chance Rain Showers

    • 67
    • 84

    Chance Rain Showers

Today 10 Sep Allegheny

Mostly cloudy with a slight chance of Showers and Thunderstorms. Near steady temperature around 80. West Winds 5 to 10 Mph. Chance of rain 20 percent.

Tonight 10 Sep Allegheny

Mostly cloudy. A chance of Showers with a slight chance of Thunderstorms this Evening, then a slight chance of Showers after midnight. Patchy fog after midnight. Lows in the lower 60s. Northwest Winds around 5 Mph, becoming north after midnight. Chance of rain 30 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Pittsburgh Temperature Statistics

September Temperature

Pittsburgh - Allegheny County Airport (6.8 miles)

  • Lowest 6 September, 2026

    57.9 °F

  • Average September

    73.2 °F

  • Highest 2 September, 2026

    91 °F

Climate (2021–2026)

Pittsburgh - Allegheny County Airport (6.8 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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