Fullerton Weather Forecast

    • 49
    • 66

    Decreasing Clouds

    • 49
    • 70

    Sunny

    • 51
    • 68

    Mostly Cloudy

    • 50
    • 65

    Rain Showers

    • 49
    • 57

    Rain Showers

    • 45
    • 59

    Rain Showers

    • 46
    • 59

    Chance Rain Showers

Today 12 Feb Los Angeles County San Gabriel Valley

Mostly cloudy in the morning then partly cloudy. Highs in the mid to upper 60s.

Tonight 12 Feb Los Angeles County San Gabriel Valley

Partly cloudy. Lows in the mid 40s to around 50.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Fullerton Temperature Statistics

February Temperature

Fullerton, Fullerton Municipal Airport (6.2 miles)

  • Lowest 3 February, 2026

    48.7 °F

  • Average February

    66.6 °F

  • Highest 4 February, 2026

    90.6 °F

Climate (2021–Present)

Fullerton, Fullerton Municipal Airport (6.2 miles)

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

  • Average Low 2021–2026

    56.9 °F

  • Average 2021–2026

    66.2 °F

  • Average High 2021–2026

    76.6 °F
Get WillyWeather+ to remove ads