Lake Cachuma Weather Forecast

    • 63
    • 79

    Rain Showers

    • 54
    • 80

    Chance Rain Showers

    • 55
    • 86

    Mostly Cloudy

    • 57
    • 87

    Partly Sunny

    • 58
    • 88

    Slight Chance Rain Showers

    • 54
    • 85

    Slight Chance Rain Showers

Today 18 Sep Santa Ynez Valley

Showers likely in the morning then Showers. A slight chance of Thunderstorms. Highs in the mid 70s to lower 80s.

Tonight 18 Sep Santa Ynez Valley

Showers likely with a slight chance of Thunderstorms in the Evening, then a chance of Showers with a slight chance of Thunderstorms after midnight. Lows in the upper 50s to mid 60s. Chance of precipitation 70 percent.

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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 7 September, 2025

    50 °F

  • Average September

    67.2 °F

  • Highest 1 September, 2025

    96.8 °F

Climate (2020–Present)

Santa Ynez, Santa Ynez Airport (7.5 miles)

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  • Average Low 2020–2025

    45.7 °F

  • Average 2020–2025

    58.1 °F

  • Average High 2020–2025

    75 °F
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