Gilroy Weather Forecast

    • 47
    • 86

    Becoming Sunny

    • 48
    • 83

    Mostly Sunny

    • 50
    • 87

    Partly Sunny

    • 50
    • 77

    Mostly Cloudy

    • 45
    • 68

    Chance Rain

    • 47
    • 68

    Chance Rain

    • 41
    • 69

    Slight Chance Rain

Today 27 Mar Santa Clara Valley Including San Jose

Partly cloudy. Highs in the lower 80s. Northwest Winds 5 to 10 Mph.

Tonight 27 Mar Santa Clara Valley Including San Jose

Mostly clear. Lows in the upper 40s. West Winds 5 to 10 Mph in the evening. Becoming light.

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Gilroy Temperature Statistics

March Temperature

South County Airport of Santa Clara County (5 miles)

  • Lowest 7 March, 2026

    37.4 °F

  • Average March

    61.5 °F

  • Highest 18 March, 2026

    93.2 °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

    73.1 °F
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