Rubidoux Weather Forecast

    • 64
    • 86

    Increasing Clouds

    • 63
    • 81

    Gradual Clearing

    • 65
    • 84

    Mostly Sunny

    • 68
    • 94

    Sunny

    • 69
    • 96

    Mostly Sunny

    • 68
    • 94

    Mostly Sunny

    • 67
    • 91

    Partly Sunny

Today 20 Sep San Bernardino and Riverside County Valleys-The Inland Empire

Partly cloudy in the morning. Becoming mostly sunny. Highs 84 to 89.

Tonight 20 Sep San Bernardino and Riverside County Valleys-The Inland Empire

Partly cloudy this evening. Becoming mostly cloudy. Lows 56 to 62. Areas of Winds west 10 Mph this evening becoming light.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Rubidoux Temperature Statistics

September Temperature

Riverside Municipal Airport (3.1 miles)

  • Lowest 5 September, 2026

    59.6 °F

  • Average September

    79.5 °F

  • Highest 9 September, 2026

    110.6 °F

Climate (2021–2026)

Riverside Municipal Airport (3.1 miles)

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

  • Average Low 2021–2026

    55 °F

  • Average 2021–2026

    67.3 °F

  • Average High 2021–2026

    80.4 °F
Get WillyWeather+ to remove ads