Alum Rock Park Weather Forecast

    • 40
    • 61

    Decreasing Clouds

    • 42
    • 62

    Mostly Sunny

    • 44
    • 64

    Mostly Sunny

    • 47
    • 65

    Partly Sunny

    • 47
    • 65

    Partly Sunny

    • 46
    • 67

    Mostly Sunny

Today 3 Dec Eastern Santa Clara Hills

Partly cloudy. Highs in the lower 50s. North Winds 5 to 15 Mph.

Tonight 3 Dec Eastern Santa Clara Hills

Mostly clear. Lows in the 30s to lower 40s. North Winds 5 to 10 Mph. Becoming south after midnight.

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Alum Rock Park Temperature Statistics

December Temperature

San Jose / Reid / Hillv (4.3 miles)

  • Lowest 1 December, 2025

    44.6 °F

  • Average December

    49.7 °F

  • Highest 1 December, 2025

    55.4 °F

Climate (2020–Present)

San Jose / Reid / Hillv (4.3 miles)

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  • Average Low 2020–2025

    51.6 °F

  • Average 2020–2025

    63.5 °F

  • Average High 2020–2025

    72.1 °F
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