Grant Lake Weather Forecast

    • 59
    • 90

    Sunny

    • 59
    • 90

    Sunny

    • 58
    • 90

    Mostly Sunny

    • 52
    • 83

    Mostly Sunny

    • 51
    • 79

    Partly Sunny

    • 50
    • 77

    Partly Sunny

Today 18 Mar Eastern Santa Clara Hills

Sunny. Highs in the upper 80s. Southeast Winds around 5 Mph.

Tonight 18 Mar Eastern Santa Clara Hills

Clear. Lows in the mid 50s to upper 60s. Northwest Winds around 5 Mph.

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  • Temperature Real-Time

Grant Lake Temperature Statistics

March Temperature

South County Airport of Santa Clara County (19.3 miles)

  • Lowest 7 March, 2026

    37.4 °F

  • Average March

    57.8 °F

  • Highest 15 March, 2026

    80.6 °F

Climate (2021–Present)

South County Airport of Santa Clara County (19.3 miles)

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  • Average Low 2021–2026

    47.7 °F

  • Average 2021–2026

    58.6 °F

  • Average High 2021–2026

    73 °F
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