Sierra Weather Forecast

    • 36
    • 56

    Becoming Sunny

    • 38
    • 59

    Mostly Sunny

    • 41
    • 62

    Mostly Sunny

    • 46
    • 61

    Chance Rain

    • 47
    • 61

    Rain Likely

    • 46
    • 58

    Chance Rain

Today 28 Dec Santa Clara Valley Including San Jose

Partly cloudy in the morning then becoming sunny. Highs in the mid 50s. North Winds around 5 Mph.

Tonight 28 Dec Santa Clara Valley Including San Jose

Mostly clear. Lows in the upper 30s. Northeast Winds around 5 Mph.

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Sierra Temperature Statistics

December Temperature

San Jose / Reid / Hillv (1.9 miles)

  • Lowest 13 December, 2025

    35.6 °F

  • Average December

    53.7 °F

  • Highest 17 December, 2025

    69.8 °F

Climate (2020–Present)

San Jose / Reid / Hillv (1.9 miles)

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  • Average Low 2020–2025

    51.7 °F

  • Average 2020–2025

    63.5 °F

  • Average High 2020–2025

    72.1 °F
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