Joseph D. Grant County Park Weather Forecast

    • 51
    • 76

    Becoming Sunny

    • 52
    • 80

    Mostly Sunny

    • 51
    • 79

    Partly Sunny

    • 54
    • 81

    Partly Sunny

    • 55
    • 82

    Partly Sunny

    • 53
    • 81

    Mostly Sunny

Today 15 Aug Eastern Santa Clara Hills

Sunny. Highs in the upper 70s. South Winds around 5 Mph.

Tonight 15 Aug Eastern Santa Clara Hills

Mostly clear. Lows in the 50s to 60s. Southwest Winds around 5 Mph in the evening. Becoming light.

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Joseph D. Grant County Park Temperature Statistics

August Temperature

South County Airport of Santa Clara County (18.6 miles)

  • Lowest 1 August, 2026

    55.4 °F

  • Average August

    68 °F

  • Highest 2 August, 2026

    96.8 °F

Climate (2021–2026)

South County Airport of Santa Clara County (18.6 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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