Gilroy Weather Forecast

    • 44
    • 73

    Mostly Sunny

    • 45
    • 73

    Partly Sunny

    • 43
    • 72

    Partly Sunny

    • 42
    • 71

    Mostly Sunny

    • 43
    • 70

    Partly Sunny

    • 43
    • 67

    Fog

Today 16 Jan Santa Clara Valley Including San Jose

Sunny. Highs around 70. Northwest Winds around 5 Mph.

Tonight 16 Jan Santa Clara Valley Including San Jose

Clear. Lows in the mid 40s. Northwest Winds 5 to 10 Mph.

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Gilroy Temperature Statistics

January Temperature

South County Airport of Santa Clara County (5 miles)

  • Lowest 9 January, 2026

    32 °F

  • Average January

    50.1 °F

  • Highest 13 January, 2026

    66.2 °F

Climate (2021–Present)

South County Airport of Santa Clara County (5 miles)

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  • Average Low 2021–2026

    47.6 °F

  • Average 2021–2026

    58.4 °F

  • Average High 2021–2026

    72.8 °F
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