Rancho Cucamonga Weather Forecast

    • 57
    • 80

    Increasing Clouds

    • 54
    • 67

    Rain Showers

    • 51
    • 67

    Chance Rain Showers

    • 53
    • 69

    Partly Sunny

    • 51
    • 66

    Rain Showers

    • 47
    • 63

    Chance Rain Showers

    • 49
    • 65

    Chance Rain Showers

Today 12 Nov San Bernardino and Riverside County Valleys-The Inland Empire

Partly cloudy with a chance of Showers. Highs 60 to 66.

Tonight 12 Nov San Bernardino and Riverside County Valleys-The Inland Empire

Mostly clear this Evening, then mostly cloudy with a slight chance of Showers overnight. Lows 51 to 57. Light Winds. Chance of measurable precipitation 20 percent.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Rancho Cucamonga Temperature Statistics

November Temperature

Ontario International Airport (3.7 miles)

  • Lowest 2 November, 2026

    51.7 °F

  • Average November

    67.5 °F

  • Highest 8 November, 2026

    86.6 °F

Climate (2021–2026)

Ontario International Airport (3.7 miles)

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

  • Average Low 2021–2026

    55.9 °F

  • Average 2021–2026

    67.3 °F

  • Average High 2021–2026

    79.4 °F
Get WillyWeather+ to remove ads