Sierra Weather Forecast

    • 69
    • 97

    Hot

    • 68
    • 96

    Partly Sunny

    • 68
    • 96

    Sunny

    • 68
    • 95

    Sunny

    • 66
    • 96

    Sunny

    • 62
    • 94

    Mostly Sunny

    • 58
    • 84

    Mostly Sunny

Today 3 Oct Santa Clara Valley Including San Jose

Sunny. Highs 95 to 101. Light Winds. Becoming northwest 5 to 10 Mph in the afternoon.

Tonight 3 Oct Santa Clara Valley Including San Jose

Clear in the evening then becoming partly cloudy. Lows in the upper 60s. Northwest Winds 5 to 10 Mph in the evening becoming light.

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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

    73.5 °F

  • Highest 1 October, 2026

    86 °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

    72.2 °F
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