Sierra Weather Forecast

    • 51
    • 70

    Chance Rain Showers

    • 51
    • 71

    Partly Sunny

    • 51
    • 76

    Mostly Sunny

    • 55
    • 84

    Sunny

    • 56
    • 87

    Mostly Sunny

    • 54
    • 84

    Mostly Sunny

    • 55
    • 83

    Sunny

Today 28 May Santa Clara Valley Including San Jose

Rain likely late in the Morning, then a chance of rain in the afternoon. Highs around 70. Southeast Winds 5 to 10 Mph.

Tonight 28 May Santa Clara Valley Including San Jose

Partly cloudy. Patchy fog after midnight. Lows in the lower 50s. West Winds 5 to 10 Mph. Becoming south 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, 2026

    50 °F

  • Average May

    67 °F

  • Highest 21 May, 2026

    89.6 °F

Climate (2021–Present)

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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