Vasona Reservoir Weather Forecast

    • 52
    • 78

    Increasing Clouds

    • 52
    • 73

    Partly Sunny

    • 55
    • 79

    Mostly Sunny

    • 58
    • 87

    Sunny

    • 58
    • 88

    Mostly Sunny

    • 58
    • 84

    Mostly Sunny

Today 26 Sep Santa Clara Valley Including San Jose

Sunny. Highs in the mid 70s. Light Winds. Becoming west 10 to 15 Mph in the afternoon.

Tonight 26 Sep Santa Clara Valley Including San Jose

Mostly clear in the evening then becoming mostly cloudy. Lows in the lower 50s. West Winds 5 to 10 Mph becoming south after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Vasona Reservoir Temperature Statistics

September Temperature

San Jose, San Jose International Airport (8.1 miles)

  • Lowest 5 September, 2026

    54.6 °F

  • Average September

    69.9 °F

  • Highest 9 September, 2026

    97.6 °F

Climate (2021–2026)

San Jose, San Jose International Airport (8.1 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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