Powder Canyon Weather Forecast

    • 50
    • 66

    Becoming Sunny

    • 52
    • 77

    Mostly Sunny

    • 52
    • 78

    Mostly Sunny

    • 53
    • 76

    Sunny

    • 54
    • 80

    Mostly Sunny

    • 53
    • 76

    Partly Sunny

    • 53
    • 68

    Mostly Cloudy

Today 14 Dec Los Angeles County San Gabriel Valley

Low Clouds and fog in the morning then partly cloudy. Highs in the mid 60s to mid 70s.

Tonight 14 Dec Los Angeles County San Gabriel Valley

Clear. Lows in the mid 40s to mid 50s.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Powder Canyon Temperature Statistics

December Temperature

Fullerton, Fullerton Municipal Airport (6.8 miles)

  • Lowest 5 December, 2025

    45 °F

  • Average December

    62.7 °F

  • Highest 10 December, 2025

    84.9 °F

Climate (2020–Present)

Fullerton, Fullerton Municipal Airport (6.8 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2020–2025

    56.8 °F

  • Average 2020–2025

    66.1 °F

  • Average High 2020–2025

    76.5 °F
Get WillyWeather+ to remove ads