Fullerton Weather Forecast

    • 49
    • 69

    Decreasing Clouds

    • 48
    • 66

    Mostly Sunny

    • 49
    • 70

    Mostly Sunny

    • 51
    • 67

    Patchy Fog

    • 49
    • 63

    Chance Rain Showers

    • 49
    • 66

    Partly Sunny

Today 29 Nov Los Angeles County San Gabriel Valley

Sunny except for patchy low Clouds and fog in the morning. Highs around 70.

Tonight 29 Nov Los Angeles County San Gabriel Valley

Mostly clear except for patchy low Clouds and fog after midnight. Lows around 50.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Fullerton Temperature Statistics

November Temperature

Fullerton, Fullerton Municipal Airport (6.2 miles)

  • Lowest 19 November, 2025

    46.9 °F

  • Average November

    62.5 °F

  • Highest 10 November, 2025

    86 °F

Climate (2020–Present)

Fullerton, Fullerton Municipal Airport (6.2 miles)

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

  • Average Low 2020–2025

    56.7 °F

  • Average 2020–2025

    66 °F

  • Average High 2020–2025

    76.5 °F
Get WillyWeather+ to remove ads