Alum Rock Weather Forecast

    • 48
    • 64

    Rain

    • 50
    • 64

    Rain Likely

    • 51
    • 66

    Mostly Sunny

    • 51
    • 70

    Mostly Sunny

    • 55
    • 75

    Mostly Sunny

    • 56
    • 79

    Mostly Sunny

    • 53
    • 74

    Mostly Sunny

Today 13 Oct Santa Clara Valley Including San Jose

Showers and a slight chance of Thunderstorms. Highs in the mid 60s. South Winds 10 to 15 Mph.

Tonight 13 Oct Santa Clara Valley Including San Jose

Showers and a slight chance of Thunderstorms in the Evening, then a chance of Showers after midnight. Lows around 50. South Winds 5 to 15 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Alum Rock Temperature Statistics

October Temperature

San Jose / Reid / Hillv (2.5 miles)

  • Lowest 4 October, 2025

    53.6 °F

  • Average October

    68.7 °F

  • Highest 7 October, 2025

    87.8 °F

Climate (2020–Present)

San Jose / Reid / Hillv (2.5 miles)

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  • Average Low 2020–2025

    51.5 °F

  • Average 2020–2025

    63.5 °F

  • Average High 2020–2025

    72.2 °F
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