Lowlanders Weather Forecast

    • 55
    • 76

    Mostly Sunny

    • 58
    • 83

    Mostly Sunny

    • 59
    • 88

    Sunny

    • 60
    • 86

    Mostly Sunny

    • 60
    • 84

    Mostly Sunny

    • 60
    • 84

    Mostly Sunny

Today 28 Sep Santa Clara Valley Including San Jose

Partly cloudy in the morning then becoming sunny. Patchy fog in the morning. Highs in the upper 70s. Southeast Winds up to 5 Mph increasing to northwest 10 to 20 Mph in the afternoon.

Tonight 28 Sep Santa Clara Valley Including San Jose

Mostly clear. Lows in the mid 50s. Northwest Winds 10 to 15 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 26 September, 2026

    53.1 °F

  • Average September

    69.9 °F

  • Highest 9 September, 2026

    97.6 °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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