Greystone Park Weather Forecast

    • 54
    • 83

    Sunny

    • 54
    • 79

    Mostly Sunny

    • 56
    • 82

    Sunny

    • 55
    • 82

    Mostly Sunny

    • 52
    • 74

    Partly Sunny

    • 53
    • 75

    Partly Sunny

    • 55
    • 74

    Chance Rain

Today 18 Oct Santa Clara Valley Including San Jose

Sunny. Highs in the lower 80s. Southwest Winds 5 to 10 Mph.

Tonight 18 Oct Santa Clara Valley Including San Jose

Clear. Lows in the mid 50s. West Winds 5 to 10 Mph. Becoming southeast after midnight.

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  • Temperature Real-Time

Greystone Park Temperature Statistics

October Temperature

San Jose / Reid / Hillv (7.5 miles)

  • Lowest 16 October, 2025

    48.2 °F

  • Average October

    66.1 °F

  • Highest 7 October, 2025

    87.8 °F

Climate (2020–Present)

San Jose / Reid / Hillv (7.5 miles)

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  • Average Low 2020–2025

    51.5 °F

  • Average 2020–2025

    63.4 °F

  • Average High 2020–2025

    72.1 °F
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