Sierra Weather Forecast

    • 51
    • 66

    Rain Showers

    • 45
    • 70

    Mostly Sunny

    • 50
    • 73

    Mostly Sunny

    • 49
    • 76

    Partly Sunny

    • 49
    • 74

    Partly Sunny

    • 49
    • 74

    Partly Sunny

Today 22 Oct Santa Clara Valley Including San Jose

Patchy fog in the morning. A chance of Showers in the Morning, then Showers likely in the afternoon. Highs in the upper 60s. Light Winds. Becoming south 5 to 10 Mph in the afternoon.

Tonight 22 Oct Santa Clara Valley Including San Jose

Mostly cloudy. A slight chance of Showers in the evening. Patchy fog after midnight. Lows in the lower 50s. West Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Sierra Temperature Statistics

October Temperature

San Jose / Reid / Hillv (1.9 miles)

  • Lowest 11 October, 2026

    48.2 °F

  • Average October

    73.5 °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

    63.8 °F

  • Average High 2021–2026

    72.3 °F
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