Campbell Weather Forecast

    • 61
    • 82

    Increasing Clouds

    • 62
    • 80

    Partly Sunny

    • 59
    • 78

    Slight Chance Rain Showers

    • 59
    • 79

    Partly Sunny

    • 57
    • 79

    Mostly Sunny

    • 58
    • 81

    Mostly Sunny

Today 7 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 to mid 80s. Light Winds. Becoming northwest 10 to 15 Mph in the afternoon.

Tonight 7 Sep Santa Clara Valley Including San Jose

Mostly clear in the evening then becoming partly cloudy. Lows in the upper 50s. Northwest Winds 5 to 15 Mph.

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  • Temperature Real-Time

Campbell Temperature Statistics

September Temperature

San Jose, San Jose International Airport (5 miles)

  • Lowest 3 September, 2025

    60.1 °F

  • Average September

    70.5 °F

  • Highest 1 September, 2025

    89.1 °F

Climate (2020–Present)

San Jose, San Jose International Airport (5 miles)

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  • Average Low 2020–2025

    51.8 °F

  • Average 2020–2025

    61.5 °F

  • Average High 2020–2025

    72.6 °F
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