Chateau Weather Forecast

    • 28
    • 45

    Increasing Clouds

    • 13
    • 33

    Mostly Sunny

    • 32
    • 39

    Rain Likely

    • 30
    • 50

    Slight Chance Rain

    • 35
    • 43

    Rain Likely

    • 48
    • 57

    Rain Likely

    • 38
    • 57

    Slight Chance Rain

Today 20 Dec Allegheny

Partly sunny. Highs in the lower 40s. South Winds 5 to 10 Mph.

Tonight 20 Dec Allegheny

Mostly cloudy. Lows in the upper 20s. Southwest Winds 5 to 10 Mph with Gusts up to 20 Mph.

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Chateau Temperature Statistics

December Temperature

Pittsburgh - Allegheny County Airport (8.7 miles)

  • Lowest 15 December, 2025

    7 °F

  • Average December

    27.8 °F

  • Highest 18 December, 2025

    57.9 °F

Climate (2020–Present)

Pittsburgh - Allegheny County Airport (8.7 miles)

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  • Average Low 2020–2025

    46.1 °F

  • Average 2020–2025

    54.6 °F

  • Average High 2020–2025

    63.2 °F
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