Summerdale Weather Forecast

    • 63
    • 92

    Sunny

    • 63
    • 92

    Sunny

    • 62
    • 92

    Mostly Sunny

    • 55
    • 84

    Partly Sunny

    • 53
    • 80

    Partly Sunny

    • 53
    • 78

    Partly Sunny

Today 18 Mar Santa Clara Valley Including San Jose

Sunny. Highs in the lower 90s. Light Winds. Becoming northwest 5 to 10 Mph in the afternoon.

Tonight 18 Mar Santa Clara Valley Including San Jose

Clear. Lows in the lower 60s. Northwest Winds around 5 Mph in the evening. Becoming light.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Summerdale Temperature Statistics

March Temperature

San Jose / Reid / Hillv (4.3 miles)

  • Lowest 11 March, 2026

    44.6 °F

  • Average March

    62.9 °F

  • Highest 15 March, 2026

    80.6 °F

Climate (2021–Present)

San Jose / Reid / Hillv (4.3 miles)

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  • Average Low 2021–2026

    51.8 °F

  • Average 2021–2026

    63.6 °F

  • Average High 2021–2026

    72.2 °F
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