Downtown Campbell Weather Forecast

    • 49
    • 72

    Mostly Cloudy

    • 47
    • 70

    Partly Sunny

    • 45
    • 66

    Mostly Cloudy

    • 45
    • 67

    Mostly Sunny

    • 49
    • 71

    Partly Sunny

    • 48
    • 72

    Partly Sunny

Today 29 Oct Santa Clara Valley Including San Jose

Mostly cloudy. Highs in the lower 70s. Light Winds. Becoming south up to 5 Mph in the afternoon.

Tonight 29 Oct Santa Clara Valley Including San Jose

Mostly cloudy. Areas of fog after midnight. Lows in the lower 50s. South Winds 5 to 10 Mph.

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Downtown Campbell Temperature Statistics

October Temperature

San Jose, San Jose International Airport (5 miles)

  • Lowest 11 October, 2026

    47.6 °F

  • Average October

    68.1 °F

  • Highest 4 October, 2026

    94.6 °F

Climate (2021–2026)

San Jose, San Jose International Airport (5 miles)

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  • Average Low 2021–2026

    52.3 °F

  • Average 2021–2026

    62.2 °F

  • Average High 2021–2026

    72.9 °F
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