St. Leo's Weather Forecast

    • 56
    • 77

    Mostly Cloudy

    • 56
    • 79

    Partly Sunny

    • 57
    • 82

    Mostly Sunny

    • 61
    • 88

    Mostly Sunny

    • 61
    • 92

    Mostly Sunny

    • 59
    • 85

    Partly Sunny

Today 20 Sep Santa Clara Valley Including San Jose

Mostly cloudy. Highs in the mid 70s to lower 80s. Light Winds. Becoming northwest 5 to 10 Mph in the afternoon.

Tonight 20 Sep Santa Clara Valley Including San Jose

Mostly cloudy. Patchy fog after midnight. Lows in the mid 50s. West Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

St. Leo's Temperature Statistics

September Temperature

San Jose, San Jose International Airport (1.9 miles)

  • Lowest 5 September, 2026

    54.6 °F

  • Average September

    70.7 °F

  • Highest 9 September, 2026

    97.6 °F

Climate (2021–2026)

San Jose, San Jose International Airport (1.9 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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