Castle Rock Weather Forecast

    • 63
    • 71

    Patchy Fog

    • 62
    • 71

    Patchy Fog

    • 61
    • 69

    Patchy Fog

    • 61
    • 68

    Mostly Cloudy

    • 61
    • 68

    Mostly Cloudy

    • 61
    • 68

    Mostly Cloudy

    • 61
    • 68

    Mostly Cloudy

Today 10 Aug San Miguel and Santa Rosa Islands

Low Clouds and fog with partial afternoon clearing. Highs in the 70s except the lower to mid 80s farthest interior.

Tonight 10 Aug San Miguel and Santa Rosa Islands

Partly cloudy except for patchy low Clouds and fog after midnight. Lows in the upper 50s to mid 60s.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Castle Rock Temperature Statistics

August Temperature

Lompoc, Lompoc Airport (42.3 miles)

  • Lowest 2 August, 2026

    55.4 °F

  • Average August

    62.4 °F

  • Highest 7 August, 2026

    73.9 °F

Climate (2021–2026)

Lompoc, Lompoc Airport (42.3 miles)

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  • Average Low 2021–2026

    48.6 °F

  • Average 2021–2026

    57.6 °F

  • Average High 2021–2026

    68.1 °F
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