Sierra Weather Forecast

    • 48
    • 69

    Increasing Clouds

    • 47
    • 70

    Mostly Cloudy

    • 45
    • 68

    Partly Sunny

    • 45
    • 63

    Slight Chance Rain

    • 45
    • 66

    Mostly Sunny

    • 49
    • 70

    Partly Sunny

Today 28 Oct Santa Clara Valley Including San Jose

Partly cloudy in the morning then becoming sunny. Highs around 70. Northwest Winds 5 to 10 Mph.

Tonight 28 Oct Santa Clara Valley Including San Jose

Mostly cloudy. Lows in the upper 40s. Northwest Winds 5 to 10 Mph in the evening. Becoming light.

Graph Plots Open in Graphs

  • 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

    70.9 °F

  • Highest 3 October, 2026

    96.8 °F

Climate (2021–2026)

San Jose / Reid / Hillv (1.9 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    52.1 °F

  • Average 2021–2026

    63.8 °F

  • Average High 2021–2026

    72.3 °F
Get WillyWeather+ to remove ads