Downtown San Jose Weather Forecast

    • 60
    • 87

    Increasing Clouds

    • 62
    • 89

    Mostly Sunny

    • 65
    • 94

    Sunny

    • 62
    • 94

    Mostly Sunny

    • 60
    • 89

    Mostly Sunny

    • 59
    • 87

    Mostly Sunny

    • 59
    • 86

    Mostly Sunny

Today 6 Aug Santa Clara Valley Including San Jose

Sunny. Highs in the 80s to mid 90s. Northwest Winds 5 to 10 Mph.

Tonight 6 Aug Santa Clara Valley Including San Jose

Mostly clear in the evening then becoming partly cloudy. Lows around 60. Northwest Winds 5 to 10 Mph.

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Downtown San Jose Temperature Statistics

August Temperature

San Jose, San Jose International Airport (2.5 miles)

  • Lowest 4 August, 2026

    59 °F

  • Average August

    72.9 °F

  • Highest 3 August, 2026

    91 °F

Climate (2021–2026)

San Jose, San Jose International Airport (2.5 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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