Santa Clara Weather Forecast

    • 61
    • 92

    Partly Sunny

    • 63
    • 89

    Mostly Sunny

    • 62
    • 87

    Partly Sunny

    • 61
    • 84

    Mostly Sunny

    • 61
    • 83

    Mostly Sunny

    • 61
    • 82

    Mostly Sunny

Today 21 Aug Santa Clara Valley Including San Jose

Mostly cloudy in the morning then becoming partly cloudy. Highs 90 to 100. Northwest Winds 5 to 15 Mph.

Tonight 21 Aug Santa Clara Valley Including San Jose

Partly cloudy. Lows in the lower 60s. Northwest Winds 5 to 15 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Santa Clara Temperature Statistics

August Temperature

San Jose, San Jose International Airport (1.2 miles)

  • Lowest 3 August, 2025

    56.6 °F

  • Average August

    70.1 °F

  • Highest 8 August, 2025

    90.6 °F

Climate (2020–Present)

San Jose, San Jose International Airport (1.2 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2020–2025

    51.8 °F

  • Average 2020–2025

    61.5 °F

  • Average High 2020–2025

    72.5 °F
Get WillyWeather+ to remove ads