Lake Cachuma Weather Forecast

    • 54
    • 91

    Mostly Sunny

    • 54
    • 90

    Mostly Sunny

    • 55
    • 91

    Partly Sunny

    • 56
    • 90

    Partly Sunny

    • 52
    • 83

    Mostly Sunny

    • 54
    • 84

    Mostly Sunny

    • 58
    • 89

    Mostly Sunny

Today 23 Sep Santa Ynez Valley

Partly cloudy in the morning then sunny. Highs in the mid 80s to around 90.

Tonight 23 Sep Santa Ynez Valley

Mostly clear in the evening then partly cloudy. Lows in the mid 50s to around 60.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lake Cachuma Temperature Statistics

September Temperature

Santa Ynez, Santa Ynez Airport (7.5 miles)

  • Lowest 2 September, 2026

    46.4 °F

  • Average September

    67 °F

  • Highest 9 September, 2026

    105.8 °F

Climate (2021–2026)

Santa Ynez, Santa Ynez Airport (7.5 miles)

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  • Average Low 2021–2026

    46.5 °F

  • Average 2021–2026

    58.8 °F

  • Average High 2021–2026

    75.3 °F
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