Downing - Whitethorne Weather Forecast

    • 38
    • 60

    Mostly Sunny

    • 45
    • 61

    Mostly Cloudy

    • 49
    • 58

    Rain

    • 53
    • 61

    Rain Likely

    • 46
    • 61

    Rain Likely

    • 44
    • 58

    Rain Likely

    • 46
    • 59

    Chance Rain

Today 29 Dec Santa Clara Valley Including San Jose

Sunny. Highs in the lower 60s. Northwest Winds 5 to 10 Mph.

Tonight 29 Dec Santa Clara Valley Including San Jose

Mostly clear. Lows around 40. Northwest Winds around 5 Mph. Becoming northeast after midnight.

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Downing - Whitethorne Temperature Statistics

December Temperature

San Jose, San Jose International Airport (3.7 miles)

  • Lowest 13 December, 2025

    37 °F

  • Average December

    52.4 °F

  • Highest 17 December, 2025

    70 °F

Climate (2020–Present)

San Jose, San Jose International Airport (3.7 miles)

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  • Average Low 2020–2025

    52 °F

  • Average 2020–2025

    61.6 °F

  • Average High 2020–2025

    72.4 °F
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