Lowlanders Weather Forecast

    • 69
    • 87

    Partly Sunny

    • 71
    • 95

    Partly Sunny

    • 62
    • 88

    Mostly Sunny

    • 58
    • 81

    Mostly Sunny

    • 56
    • 75

    Mostly Sunny

    • 57
    • 77

    Mostly Sunny

    • 58
    • 78

    Mostly Sunny

Today 8 Sep Santa Clara Valley Including San Jose

Sunny late in the morning then becoming partly cloudy. Highs in the upper 80s to mid 90s. Light Winds. Becoming northwest 5 to 10 Mph in the afternoon.

Tonight 8 Sep Santa Clara Valley Including San Jose

Partly cloudy in the evening then becoming mostly cloudy. Lows in the upper 60s. Northwest Winds 5 to 10 Mph in the evening. Becoming light.

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Lowlanders Temperature Statistics

September Temperature

San Jose, San Jose International Airport (5.6 miles)

  • Lowest 5 September, 2026

    54.6 °F

  • Average September

    68.1 °F

  • Highest 3 September, 2026

    80.7 °F

Climate (2021–2026)

San Jose, San Jose International Airport (5.6 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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