Chateau Weather Forecast

    • 58
    • 71

    Mostly Cloudy

    • 59
    • 69

    Mostly Cloudy

    • 58
    • 76

    Mostly Cloudy

    • 60
    • 78

    Partly Sunny

    • 63
    • 82

    Chance Rain Showers

    • 52
    • 74

    Chance Rain Showers

    • 52
    • 68

    Chance Rain Showers

Today 27 Sep Allegheny

Partly sunny in the Morning, then becoming mostly cloudy. A 40 percent chance of Showers. Highs in the mid 60s.

Tonight 27 Sep Allegheny

Considerable cloudiness. A slight chance of Showers this evening. Lows in the mid 50s. North Winds 5 to 10 Mph. Gusts up to 30 Mph this evening. Chance of rain 20 percent.

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Chateau Temperature Statistics

September Temperature

Pittsburgh - Allegheny County Airport (8.7 miles)

  • Lowest 25 September, 2026

    44.1 °F

  • Average September

    68.7 °F

  • Highest 2 September, 2026

    91 °F

Climate (2021–2026)

Pittsburgh - Allegheny County Airport (8.7 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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