South County Airport of Santa Clara County Weather Forecast

    • 56
    • 88

    Becoming Sunny

    • 56
    • 88

    Partly Sunny

    • 62
    • 92

    Mostly Cloudy

    • 63
    • 92

    Mostly Cloudy

    • 62
    • 93

    Mostly Sunny

    • 61
    • 93

    Mostly Sunny

Today 9 Jul Santa Clara Valley Including San Jose

Partly cloudy in the morning then becoming sunny. Highs in the 80s. Light Winds. Becoming northwest 5 to 15 Mph in the afternoon.

Tonight 9 Jul Santa Clara Valley Including San Jose

Mostly clear in the evening then becoming partly cloudy. Lows in the upper 50s. Northwest Winds 10 to 15 Mph. Becoming southwest up to 5 Mph after midnight.

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South County Airport of Santa Clara County Temperature Statistics

July Temperature

South County Airport of Santa Clara County (0 miles)

  • Lowest 4 July, 2026

    53.6 °F

  • Average July

    63.1 °F

  • Highest 4 July, 2026

    84.2 °F

Climate (2021–2026)

South County Airport of Santa Clara County (0 miles)

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  • Average Low 2021–2026

    47.9 °F

  • Average 2021–2026

    58.8 °F

  • Average High 2021–2026

    73.1 °F
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