Castaic Junction Weather Forecast

    • 41
    • 77

    Sunny

    • 38
    • 74

    Breezy

    • 47
    • 73

    Partly Sunny

    • 44
    • 66

    Partly Sunny

    • 46
    • 65

    Mostly Sunny

    • 47
    • 68

    Mostly Sunny

Today 19 Jan Santa Clarita Valley

Sunny. Highs in the mid 70s. Northeast Winds 15 to 25 Mph.

Tonight 19 Jan Santa Clarita Valley

Clear. Lows in the upper 30s and 40s except around 60 in the Hills. Northeast Winds 15 to 25 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Castaic Junction Temperature Statistics

January Temperature

Van Nuys, Van Nuys Airport (16.8 miles)

  • Lowest 8 January, 2026

    42.1 °F

  • Average January

    61.4 °F

  • Highest 14 January, 2026

    84 °F

Climate (2021–Present)

Van Nuys, Van Nuys Airport (16.8 miles)

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

  • Average Low 2021–2026

    56.5 °F

  • Average 2021–2026

    67.4 °F

  • Average High 2021–2026

    79.3 °F
Get WillyWeather+ to remove ads