Sierra Weather Forecast

    • 55
    • 82

    Becoming Sunny

    • 60
    • 94

    Sunny

    • 57
    • 93

    Mostly Sunny

    • 52
    • 81

    Mostly Sunny

    • 51
    • 77

    Mostly Sunny

    • 51
    • 75

    Mostly Sunny

Today 29 May Santa Clara Valley Including San Jose

Partly cloudy in the morning then becoming sunny. Highs in the upper 70s to mid 80s. Northwest Winds 5 to 10 Mph increasing to 10 to 20 Mph in the afternoon.

Tonight 29 May Santa Clara Valley Including San Jose

Mostly clear. Lows in the mid 50s. Northwest Winds 10 to 20 Mph decreasing to around 5 Mph after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Sierra Temperature Statistics

May Temperature

San Jose / Reid / Hillv (1.9 miles)

  • Lowest 4 May, 2025

    46.4 °F

  • Average May

    66.6 °F

  • Highest 9 May, 2025

    89.6 °F

Climate (2020–Present)

San Jose / Reid / Hillv (1.9 miles)

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  • Average Low 2020–2025

    51.6 °F

  • Average 2020–2025

    63.6 °F

  • Average High 2020–2025

    72.4 °F
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