Castle Rock Weather Forecast

    • 58
    • 67

    Cloudy

    • 57
    • 63

    Patchy Fog

    • 58
    • 63

    Patchy Fog

    • 58
    • 64

    Patchy Fog

    • 59
    • 66

    Patchy Fog

    • 59
    • 65

    Patchy Fog

    • 58
    • 64

    Patchy Fog

Today 16 Aug San Miguel and Santa Rosa Islands

Mostly cloudy. Highs in the mid 60s to mid 70s. Northwest Winds 20 to 30 Mph in the afternoon.

Tonight 16 Aug San Miguel and Santa Rosa Islands

Low Clouds and fog. Lows in the mid to upper 50s. Northwest Winds 20 to 35 Mph.

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Castle Rock Temperature Statistics

August Temperature

Lompoc, Lompoc Airport (42.3 miles)

  • Lowest 4 August, 2025

    48.2 °F

  • Average August

    59.8 °F

  • Highest 4 August, 2025

    73 °F

Climate (2020–Present)

Lompoc, Lompoc Airport (42.3 miles)

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  • Average Low 2020–2025

    48 °F

  • Average 2020–2025

    56.8 °F

  • Average High 2020–2025

    67.4 °F
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