Lowlanders Weather Forecast

    • 60
    • 79

    Mostly Sunny

    • 64
    • 87

    Becoming Sunny

    • 63
    • 89

    Sunny

    • 63
    • 86

    Mostly Sunny

    • 62
    • 80

    Partly Sunny

    • 62
    • 80

    Partly Sunny

    • 60
    • 78

    Partly Sunny

Today 14 Sep Santa Clara Valley Including San Jose

Sunny. Highs in the lower to mid 80s. Northwest Winds 15 to 20 Mph.

Tonight 14 Sep Santa Clara Valley Including San Jose

Mostly clear. Lows in the upper 50s. Northwest Winds 10 to 20 Mph in the evening. Becoming light.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lowlanders Temperature Statistics

September Temperature

San Jose, San Jose International Airport (5.6 miles)

  • Lowest 3 September, 2025

    60.1 °F

  • Average September

    68.9 °F

  • Highest 1 September, 2025

    89.1 °F

Climate (2020–Present)

San Jose, San Jose International Airport (5.6 miles)

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  • Average Low 2020–2025

    51.8 °F

  • Average 2020–2025

    61.6 °F

  • Average High 2020–2025

    72.6 °F
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