Chateau Weather Forecast

    • 58
    • 76

    Rain Showers Likely

    • 57
    • 66

    Rain Showers

    • 54
    • 66

    Rain Showers

    • 53
    • 64

    Rain Showers Likely

    • 50
    • 65

    Partly Sunny

    • 50
    • 68

    Partly Sunny

Today 20 Sep Allegheny

Showers likely with a slight chance of Thunderstorms. Patchy fog. Some Thunderstorms may produce heavy rainfall. Near steady temperature in the mid 70s. Northwest Winds 5 to 10 Mph. Chance of rain 70 percent.

Tonight 20 Sep Allegheny

A slight chance of Thunderstorms in the evening. Mostly cloudy with a chance of Showers. Patchy fog. Some Thunderstorms may produce heavy rainfall in the evening. Lows in the upper 50s. Northeast Winds 5 to 10 Mph. Chance of rain 50 percent.

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Chateau Temperature Statistics

September Temperature

Pittsburgh - Allegheny County Airport (8.7 miles)

  • Lowest 15 September, 2026

    53.1 °F

  • Average September

    72 °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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