Cornwall - Sunshadow Weather Forecast

    • 41
    • 62

    Decreasing Clouds

    • 43
    • 62

    Mostly Sunny

    • 46
    • 64

    Mostly Sunny

    • 48
    • 66

    Partly Sunny

    • 47
    • 66

    Partly Sunny

    • 47
    • 67

    Partly Sunny

Today 3 Dec Santa Clara Valley Including San Jose

Mostly cloudy in the morning then becoming partly cloudy. Highs in the lower 60s. Northwest Winds 5 to 15 Mph.

Tonight 3 Dec Santa Clara Valley Including San Jose

Mostly clear in the evening then becoming partly cloudy. Lows around 40. Northwest Winds around 5 Mph. Becoming east after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Cornwall - Sunshadow Temperature Statistics

December Temperature

San Jose / Reid / Hillv (0.6 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 (0.6 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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