Powder Canyon Weather Forecast

    • 64
    • 78

    Increasing Clouds

    • 65
    • 83

    Partly Sunny

    • 67
    • 88

    Sunny

    • 67
    • 91

    Sunny

    • 67
    • 91

    Slight Chance Thunderstorms

    • 67
    • 89

    Slight Chance Thunderstorms

    • 66
    • 84

    Slight Chance Thunderstorms

Today 13 Sep Los Angeles County San Gabriel Valley

Low Clouds and fog in the morning then sunny. Highs in the upper 70s to mid 80s.

Tonight 13 Sep Los Angeles County San Gabriel Valley

Clear in the evening then partly cloudy. Lows in the lower to mid 60s.

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  • Temperature Real-Time

Powder Canyon Temperature Statistics

September Temperature

Fullerton, Fullerton Municipal Airport (6.8 miles)

  • Lowest 11 September, 2025

    64.9 °F

  • Average September

    75.5 °F

  • Highest 2 September, 2025

    97 °F

Climate (2020–Present)

Fullerton, Fullerton Municipal Airport (6.8 miles)

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  • Average Low 2020–2025

    56.7 °F

  • Average 2020–2025

    66.1 °F

  • Average High 2020–2025

    76.7 °F
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