Old Gilroy Weather Forecast

    • 36
    • 57

    Areas Fog

    • 38
    • 59

    Areas Fog

    • 45
    • 57

    Rain Likely

    • 49
    • 60

    Rain Likely

    • 49
    • 63

    Chance Rain

    • 45
    • 61

    Rain Likely

    • 39
    • 60

    Rain

Today 29 Jan Santa Clara Valley Including San Jose

Sunny. Highs around 60. Northwest Winds 5 to 10 Mph.

Tonight 29 Jan Santa Clara Valley Including San Jose

Partly cloudy in the evening then becoming mostly cloudy. Patchy fog in the evening. Areas of fog after midnight. Lows in the mid 30s to lower 40s. Northwest Winds around 5 Mph in the evening. Becoming light.

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Old Gilroy Temperature Statistics

January Temperature

South County Airport of Santa Clara County (6.8 miles)

  • Lowest 21 January, 2025

    28.4 °F

  • Average January

    47.6 °F

  • Highest 9 January, 2025

    71.6 °F

Climate (2020–Present)

South County Airport of Santa Clara County (6.8 miles)

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  • Average Low 2020–2025

    47.6 °F

  • Average 2020–2025

    58.7 °F

  • Average High 2020–2025

    73.4 °F
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