Sierra Weather Forecast

    • 55
    • 84

    Increasing Clouds

    • 49
    • 70

    Partly Sunny

    • 50
    • 69

    Mostly Sunny

    • 50
    • 69

    Mostly Sunny

    • 51
    • 72

    Mostly Sunny

    • 53
    • 76

    Sunny

    • 56
    • 82

    Sunny

Today 9 Oct Santa Clara Valley Including San Jose

Sunny. Highs in the lower to mid 80s. Northwest Winds 5 to 10 Mph.

Tonight 9 Oct Santa Clara Valley Including San Jose

Mostly clear in the evening then becoming partly cloudy. Lows in the mid 50s. Southeast Winds 10 to 20 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Sierra Temperature Statistics

October Temperature

San Jose / Reid / Hillv (1.9 miles)

  • Lowest 1 October, 2026

    57.2 °F

  • Average October

    79.4 °F

  • Highest 3 October, 2026

    96.8 °F

Climate (2021–2026)

San Jose / Reid / Hillv (1.9 miles)

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  • Average Low 2021–2026

    52.1 °F

  • Average 2021–2026

    63.7 °F

  • Average High 2021–2026

    72.3 °F
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