Bascom - Forest Weather Forecast

    • 56
    • 84

    Increasing Clouds

    • 56
    • 78

    Mostly Cloudy

    • 56
    • 80

    Partly Sunny

    • 57
    • 81

    Mostly Sunny

    • 61
    • 88

    Mostly Sunny

    • 61
    • 92

    Mostly Sunny

    • 59
    • 85

    Partly Sunny

Today 19 Sep Santa Clara Valley Including San Jose

Partly cloudy in the morning then becoming sunny. Highs in the upper 70s to mid 80s.

Tonight 19 Sep Santa Clara Valley Including San Jose

Mostly cloudy. Lows in the mid 50s. Northwest Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Bascom - Forest 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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