Alum Rock Weather Forecast

    • 45
    • 66

    Decreasing Clouds

    • 48
    • 72

    Mostly Sunny

    • 52
    • 77

    Mostly Sunny

    • 52
    • 79

    Mostly Sunny

    • 52
    • 80

    Partly Sunny

    • 51
    • 76

    Partly Sunny

Today 27 Apr Santa Clara Valley Including San Jose

Partly cloudy. A slight chance of drizzle. Highs in the mid 60s. Northwest Winds 5 to 15 Mph.

Tonight 27 Apr Santa Clara Valley Including San Jose

Mostly clear. Areas of fog after midnight. Lows in the 40s. Northwest Winds 5 to 15 Mph in the evening. Becoming light.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Alum Rock Temperature Statistics

April Temperature

San Jose / Reid / Hillv (2.5 miles)

  • Lowest 3 April, 2026

    44.6 °F

  • Average April

    64.4 °F

  • Highest 5 April, 2026

    87.8 °F

Climate (2021–Present)

San Jose / Reid / Hillv (2.5 miles)

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  • Average Low 2021–2026

    51.9 °F

  • Average 2021–2026

    63.7 °F

  • Average High 2021–2026

    72.4 °F
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