Castaic Weather Forecast

    • 52
    • 77

    Breezy

    • 58
    • 82

    Breezy

    • 60
    • 86

    Sunny

    • 57
    • 89

    Sunny

    • 57
    • 88

    Mostly Sunny

    • 57
    • 86

    Sunny

Today 26 Oct Santa Clarita Valley

Sunny. Highs in the mid 70s. West Winds 10 to 20 Mph in the afternoon.

Tonight 26 Oct Santa Clarita Valley

Clear. Lows in the lower to mid 50s. North Winds 15 to 25 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Castaic Temperature Statistics

October Temperature

Van Nuys, Van Nuys Airport (20.5 miles)

  • Lowest 15 October, 2025

    50 °F

  • Average October

    67 °F

  • Highest 10 October, 2025

    91 °F

Climate (2020–Present)

Van Nuys, Van Nuys Airport (20.5 miles)

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

  • Average Low 2020–2025

    56.5 °F

  • Average 2020–2025

    67.4 °F

  • Average High 2020–2025

    79.4 °F
Get WillyWeather+ to remove ads