Grant Lake Weather Forecast

    • 51
    • 79

    Areas Smoke

    • 49
    • 72

    Patchy Smoke

    • 47
    • 72

    Mostly Sunny

    • 48
    • 74

    Mostly Sunny

    • 48
    • 75

    Partly Sunny

    • 50
    • 75

    Partly Sunny

    • 52
    • 76

    Partly Sunny

Today 12 Aug Eastern Santa Clara Hills

Partly cloudy. Highs around 80. Southwest Winds 5 to 10 Mph.

Tonight 12 Aug Eastern Santa Clara Hills

Partly cloudy in the evening then becoming mostly cloudy. Areas of smoke. Lows in the lower 50s to mid 60s. Southwest Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Grant Lake Temperature Statistics

August Temperature

South County Airport of Santa Clara County (19.3 miles)

  • Lowest 1 August, 2026

    55.4 °F

  • Average August

    69 °F

  • Highest 2 August, 2026

    96.8 °F

Climate (2021–2026)

South County Airport of Santa Clara County (19.3 miles)

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  • Average Low 2021–2026

    48 °F

  • Average 2021–2026

    58.8 °F

  • Average High 2021–2026

    73.1 °F
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