Lake Cachuma Weather Forecast

    • 66
    • 102

    Hot

    • 62
    • 100

    Hot

    • 55
    • 93

    Partly Sunny

    • 53
    • 87

    Mostly Sunny

    • 53
    • 86

    Mostly Sunny

    • 52
    • 84

    Mostly Sunny

    • 49
    • 79

    Sunny

Today 9 Sep Santa Ynez Valley

Partly cloudy in the morning then sunny. Highs 99 to 104.

Tonight 9 Sep Santa Ynez Valley

Mostly clear. Lows in the 60s except the lower to mid 70s in the Hills.

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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

    66.1 °F

  • Highest 7 September, 2026

    91.4 °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

    58.7 °F

  • Average High 2021–2026

    75.3 °F
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