Sierra Weather Forecast

    • 57
    • 76

    Becoming Sunny

    • 57
    • 75

    Chance Rain

    • 56
    • 74

    Mostly Sunny

    • 57
    • 78

    Mostly Sunny

    • 57
    • 77

    Mostly Sunny

    • 60
    • 81

    Mostly Sunny

    • 61
    • 84

    Partly Sunny

Today 2 Sep Santa Clara Valley Including San Jose

Sunny. Highs in the mid to upper 70s. West Winds 10 to 15 Mph.

Tonight 2 Sep Santa Clara Valley Including San Jose

Mostly clear except patchy fog after midnight. Lows in the mid 50s. Northwest Winds 5 to 15 Mph. Becoming south up to 5 Mph after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Sierra Temperature Statistics

September Temperature

San Jose / Reid / Hillv (1.9 miles)

  • Lowest

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  • Average September

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  • Highest

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Climate (2021–2026)

San Jose / Reid / Hillv (1.9 miles)

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  • Average Low 2021–2026

    52 °F

  • Average 2021–2026

    63.7 °F

  • Average High 2021–2026

    72.3 °F
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