Castaic Lake State Recreation Area Weather Forecast

    • 53
    • 71

    Gradual Clearing

    • 56
    • 75

    Sunny

    • 58
    • 79

    Mostly Sunny

    • 54
    • 76

    Mostly Sunny

    • 54
    • 73

    Mostly Sunny

    • 58
    • 78

    Breezy

Today 13 May Western San Gabriel Mountains and Highway 14 Corridor

Patchy low Clouds and fog. Highs in the lower 70s. Southwest wind 15 to 20 Mph.

Tonight 13 May Western San Gabriel Mountains and Highway 14 Corridor

Mostly clear. Lows around 50. Southwest wind 15 to 20 Mph.

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Castaic Lake State Recreation Area Temperature Statistics

May Temperature

Sandberg (14.9 miles)

  • Lowest 4 May, 2026

    38.6 °F

  • Average May

    60.1 °F

  • Highest 10 May, 2026

    86 °F

Climate (2021–Present)

Sandberg (14.9 miles)

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  • Average Low 2021–2026

    51.5 °F

  • Average 2021–2026

    59.4 °F

  • Average High 2021–2026

    68.1 °F
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