Castaic Lake Weather Forecast

    • 40
    • 59

    Becoming Sunny

    • 44
    • 67

    Partly Sunny

    • 51
    • 69

    Partly Sunny

    • 51
    • 71

    Partly Sunny

    • 47
    • 71

    Mostly Cloudy

    • 49
    • 64

    Chance Rain

Today 30 Jan Santa Clarita Valley

Mostly cloudy in the morning then sunny. Areas of frost in the morning. Highs in the mid to upper 50s.

Tonight 30 Jan Santa Clarita Valley

Mostly clear. Lows in the mid 30s to lower 40s.

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Castaic Lake Temperature Statistics

January Temperature

Los Angeles, Whiteman Airport (22.4 miles)

  • Lowest 19 January, 2025

    42.8 °F

  • Average January

    62 °F

  • Highest 2 January, 2025

    78.8 °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 °F

  • Average High 2020–2025

    76.2 °F
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