Castaic Lagoon Weather Forecast

    • 42
    • 73

    Breezy

    • 42
    • 66

    Breezy

    • 46
    • 70

    Breezy

    • 48
    • 74

    Breezy

    • 51
    • 78

    Mostly Sunny

    • 51
    • 76

    Mostly Sunny

Today 4 Mar Santa Clarita Valley

Sunny in the morning then partly cloudy. Highs in the lower to mid 70s. West Winds 10 to 20 Mph in the afternoon.

Tonight 4 Mar Santa Clarita Valley

Partly cloudy in the evening then mostly clear. Lows in the upper 30s to mid 40s. North Winds 15 to 25 Mph increasing to 20 to 30 Mph with Gusts to 40 Mph after midnight. Gusts to 45 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Castaic Lagoon Temperature Statistics

March Temperature

Van Nuys, Van Nuys Airport (21.1 miles)

  • Lowest 1 March, 2026

    57 °F

  • Average March

    69.7 °F

  • Highest 1 March, 2026

    82.9 °F

Climate (2021–Present)

Van Nuys, Van Nuys Airport (21.1 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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