Castaic Lake Weather Forecast

    • 48
    • 75

    Increasing Clouds

    • 48
    • 74

    Partly Sunny

    • 54
    • 78

    Partly Sunny

    • 46
    • 68

    Mostly Cloudy

    • 47
    • 58

    Mostly Cloudy

    • 48
    • 60

    Partly Sunny

    • 51
    • 70

    Mostly Sunny

Today 30 Apr Santa Clarita Valley

Partly cloudy after morning low Clouds and fog. Highs in the lower to mid 70s. South Winds 10 to 20 Mph in the afternoon.

Tonight 30 Apr Santa Clarita Valley

Partly cloudy in the evening then low Clouds and fog. Lows in the mid 40s to around 50. Southwest Winds 10 to 20 Mph in the evening.

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Castaic Lake Temperature Statistics

April Temperature

Los Angeles, Whiteman Airport (22.4 miles)

  • Lowest 3 April, 2025

    48.2 °F

  • Average April

    65.9 °F

  • Highest 10 April, 2025

    86 °F

Climate (2020–Present)

Los Angeles, Whiteman Airport (22.4 miles)

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  • Average Low 2020–2025

    60.3 °F

  • Average 2020–2025

    70.1 °F

  • Average High 2020–2025

    76.3 °F
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