Downing - Whitethorne Weather Forecast

    • 41
    • 60

    Decreasing Clouds

    • 43
    • 65

    Mostly Sunny

    • 44
    • 66

    Mostly Sunny

    • 47
    • 69

    Mostly Sunny

    • 45
    • 70

    Mostly Sunny

    • 46
    • 70

    Mostly Sunny

    • 46
    • 69

    Mostly Sunny

Today 7 Dec Santa Clara Valley Including San Jose

Partly cloudy. Highs in the mid 60s. Northwest Winds 5 to 15 Mph.

Tonight 7 Dec Santa Clara Valley Including San Jose

Mostly clear. Lows in the lower 40s. Northwest Winds 5 to 10 Mph.

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Downing - Whitethorne Temperature Statistics

December Temperature

San Jose, San Jose International Airport (3.7 miles)

  • Lowest 2 December, 2025

    39.9 °F

  • Average December

    49.9 °F

  • Highest 3 December, 2025

    64.9 °F

Climate (2020–Present)

San Jose, San Jose International Airport (3.7 miles)

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  • Average Low 2020–2025

    51.9 °F

  • Average 2020–2025

    61.5 °F

  • Average High 2020–2025

    72.4 °F
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