San Antonio Park Weather Forecast

    • 63
    • 90

    Sunny

    • 63
    • 92

    Sunny

    • 62
    • 89

    Partly Sunny

    • 63
    • 81

    Chance Rain Showers

    • 62
    • 82

    Slight Chance Rain Showers

    • 61
    • 81

    Partly Sunny

    • 61
    • 80

    Mostly Sunny

Today 15 Sep Santa Clara Valley Including San Jose

Sunny. Highs in the upper 80s to mid 90s. Light Winds. Becoming northwest 5 to 10 Mph in the afternoon.

Tonight 15 Sep Santa Clara Valley Including San Jose

Clear. Lows in the mid 60s. West Winds 5 to 10 Mph in the evening. Becoming light.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

San Antonio Park Temperature Statistics

September Temperature

San Jose, San Jose International Airport (6.8 miles)

  • Lowest 3 September, 2025

    60.1 °F

  • Average September

    68.7 °F

  • Highest 1 September, 2025

    89.1 °F

Climate (2020–Present)

San Jose, San Jose International Airport (6.8 miles)

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

  • Average Low 2020–2025

    51.8 °F

  • Average 2020–2025

    61.6 °F

  • Average High 2020–2025

    72.6 °F
Get WillyWeather+ to remove ads