San Martin Weather Forecast

    • 56
    • 89

    Becoming Sunny

    • 57
    • 91

    Mostly Sunny

    • 58
    • 93

    Mostly Sunny

    • 58
    • 93

    Mostly Sunny

    • 57
    • 91

    Mostly Sunny

    • 57
    • 90

    Mostly Sunny

Today 23 Jul Santa Clara Valley Including San Jose

Partly cloudy in the morning then becoming sunny. Highs in the 70s to upper 80s. Northwest Winds 5 to 10 Mph increasing to 10 to 20 Mph in the afternoon.

Tonight 23 Jul Santa Clara Valley Including San Jose

Clear in the evening then becoming partly cloudy. Lows in the upper 50s. Northwest Winds 10 to 20 Mph becoming 5 to 10 Mph after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

San Martin Temperature Statistics

July Temperature

South County Airport of Santa Clara County (0.6 miles)

  • Lowest 4 July, 2026

    53.6 °F

  • Average July

    68.4 °F

  • Highest 14 July, 2026

    102.2 °F

Climate (2021–2026)

South County Airport of Santa Clara County (0.6 miles)

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  • Average Low 2021–2026

    47.9 °F

  • Average 2021–2026

    58.8 °F

  • Average High 2021–2026

    73.1 °F
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