Gilroy Weather Forecast

    • 53
    • 92

    Sunny

    • 51
    • 91

    Mostly Sunny

    • 50
    • 87

    Mostly Sunny

    • 50
    • 81

    Mostly Sunny

    • 50
    • 78

    Partly Sunny

    • 50
    • 79

    Mostly Sunny

Today 19 May Santa Clara Valley Including San Jose

Sunny. Highs in the upper 80s. Northwest Winds 5 to 15 Mph.

Tonight 19 May Santa Clara Valley Including San Jose

Mostly clear. Lows in the mid 50s. Northwest Winds 5 to 15 Mph in the evening. Becoming light.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Gilroy Temperature Statistics

May Temperature

South County Airport of Santa Clara County (5 miles)

  • Lowest 4 May, 2026

    46.4 °F

  • Average May

    61.2 °F

  • Highest 11 May, 2026

    86 °F

Climate (2021–Present)

South County Airport of Santa Clara County (5 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    47.9 °F

  • Average 2021–2026

    58.7 °F

  • Average High 2021–2026

    73.1 °F
Get WillyWeather+ to remove ads