Castaic Junction Weather Forecast

    • 38
    • 68

    Sunny

    • 41
    • 69

    Sunny

    • 44
    • 71

    Breezy

    • 46
    • 78

    Sunny

    • 44
    • 80

    Partly Sunny

    • 48
    • 75

    Mostly Sunny

Today 5 Mar Santa Clarita Valley

Sunny. Highs in the mid to upper 60s. North Winds 15 to 25 Mph.

Tonight 5 Mar Santa Clarita Valley

Clear. Lows in the upper 30s to mid 40s. North Winds 15 to 25 Mph.

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  • Temperature Real-Time

Castaic Junction Temperature Statistics

March Temperature

Van Nuys, Van Nuys Airport (16.8 miles)

  • Lowest 3 March, 2026

    51.1 °F

  • Average March

    64.6 °F

  • Highest 1 March, 2026

    82.9 °F

Climate (2021–Present)

Van Nuys, Van Nuys Airport (16.8 miles)

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  • Average Low 2021–2026

    56.5 °F

  • Average 2021–2026

    67.4 °F

  • Average High 2021–2026

    79.4 °F
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