Lake Ranch Reservoir Weather Forecast

    • 72
    • 86

    Becoming Sunny

    • 61
    • 78

    Sunny

    • 54
    • 67

    Mostly Sunny

    • 54
    • 69

    Mostly Sunny

    • 56
    • 73

    Mostly Sunny

    • 56
    • 68

    Partly Sunny

Today 10 Sep Santa Cruz Mountains

Sunny. Highs in the 80s to lower 90s. Light Winds. Becoming northwest around 5 Mph in the afternoon.

Tonight 10 Sep Santa Cruz Mountains

Mostly clear. Lows in the upper 50s to lower 70s. Northwest Winds up to 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lake Ranch Reservoir Temperature Statistics

September Temperature

San Jose, San Jose International Airport (11.8 miles)

  • Lowest 5 September, 2026

    54.6 °F

  • Average September

    69.7 °F

  • Highest 8 September, 2026

    91.9 °F

Climate (2021–2026)

San Jose, San Jose International Airport (11.8 miles)

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  • Average Low 2021–2026

    52.3 °F

  • Average 2021–2026

    62.1 °F

  • Average High 2021–2026

    72.8 °F
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