Powder Canyon Weather Forecast

    • 56
    • 79

    Mostly Sunny

    • 57
    • 79

    Mostly Sunny

    • 58
    • 81

    Partly Sunny

    • 59
    • 82

    Sunny

    • 59
    • 86

    Mostly Sunny

    • 57
    • 82

    Partly Sunny

Today 7 May Los Angeles County San Gabriel Valley

Sunny. Highs in the upper 70s to mid 80s.

Tonight 7 May Los Angeles County San Gabriel Valley

Clear in the evening then partly cloudy. Lows in the mid to upper 50s.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Powder Canyon Temperature Statistics

May Temperature

Fullerton, Fullerton Municipal Airport (6.8 miles)

  • Lowest 5 May, 2026

    55.9 °F

  • Average May

    64.9 °F

  • Highest 1 May, 2026

    75.7 °F

Climate (2021–Present)

Fullerton, Fullerton Municipal Airport (6.8 miles)

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  • Average Low 2021–2026

    57 °F

  • Average 2021–2026

    66.4 °F

  • Average High 2021–2026

    76.8 °F
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