Gilroy Weather Forecast

    • 42
    • 67

    Mostly Sunny

    • 45
    • 73

    Becoming Sunny

    • 47
    • 77

    Mostly Sunny

    • 50
    • 77

    Mostly Sunny

    • 50
    • 80

    Partly Sunny

    • 49
    • 76

    Partly Sunny

    • 50
    • 74

    Partly Sunny

Today 27 Apr Santa Clara Valley Including San Jose

Partly cloudy. A slight chance of drizzle. Highs in the upper 60s. Northwest Winds 10 to 15 Mph.

Tonight 27 Apr Santa Clara Valley Including San Jose

Mostly clear except patchy fog after midnight. Lows in the 40s. Northwest Winds 5 to 15 Mph in the evening. Becoming light.

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Gilroy Temperature Statistics

April Temperature

South County Airport of Santa Clara County (5 miles)

  • Lowest 3 April, 2026

    39.2 °F

  • Average April

    59.4 °F

  • Highest 5 April, 2026

    86 °F

Climate (2021–Present)

South County Airport of Santa Clara County (5 miles)

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  • Average Low 2021–2026

    47.8 °F

  • Average 2021–2026

    58.7 °F

  • Average High 2021–2026

    73.2 °F
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