Heintz Open Space Weather Forecast

    • 56
    • 78

    Becoming Sunny

    • 56
    • 80

    Mostly Sunny

    • 56
    • 82

    Mostly Sunny

    • 60
    • 88

    Mostly Sunny

    • 61
    • 92

    Mostly Sunny

    • 61
    • 91

    Mostly Sunny

Today 17 Aug Santa Clara Valley Including San Jose

Partly cloudy in the morning then becoming sunny. Highs in the 70s to lower 80s. Northwest Winds 5 to 15 Mph.

Tonight 17 Aug Santa Clara Valley Including San Jose

Clear in the evening then becoming partly cloudy. Lows in the mid 50s. Northwest Winds 5 to 15 Mph.

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Heintz Open Space Temperature Statistics

August Temperature

San Jose, San Jose International Airport (8.7 miles)

  • Lowest 3 August, 2025

    56.6 °F

  • Average August

    70 °F

  • Highest 8 August, 2025

    90.6 °F

Climate (2020–Present)

San Jose, San Jose International Airport (8.7 miles)

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  • Average Low 2020–2025

    51.8 °F

  • Average 2020–2025

    61.5 °F

  • Average High 2020–2025

    72.6 °F
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