Del Marietta - Southwest Weather Forecast

    • 51
    • 73

    Rain Showers Likely

    • 51
    • 72

    Chance Rain Showers

    • 51
    • 72

    Partly Sunny

    • 49
    • 76

    Mostly Sunny

    • 53
    • 84

    Mostly Sunny

    • 55
    • 87

    Mostly Sunny

    • 55
    • 86

    Mostly Sunny

Today 27 May Santa Clara Valley Including San Jose

Sunny late in the morning then becoming partly cloudy. Highs in the lower 70s. South Winds up to 5 Mph increasing to southwest 10 to 15 Mph in the afternoon.

Tonight 27 May Santa Clara Valley Including San Jose

A slight chance of Showers in the Evening, then Showers likely after midnight. Lows in the lower 50s. West Winds 5 to 10 Mph. Becoming southeast after midnight.

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  • Temperature Real-Time

Del Marietta - Southwest Temperature Statistics

May Temperature

San Jose, San Jose International Airport (3.7 miles)

  • Lowest 4 May, 2026

    48.7 °F

  • Average May

    64.6 °F

  • Highest 19 May, 2026

    87.7 °F

Climate (2021–Present)

San Jose, San Jose International Airport (3.7 miles)

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  • Average Low 2021–2026

    52.2 °F

  • Average 2021–2026

    61.9 °F

  • Average High 2021–2026

    72.7 °F
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