Etiwanda Weather Forecast

    • 42
    • 57

    Chance Rain Showers

    • 44
    • 59

    Partly Sunny

    • 47
    • 58

    Rain Showers Likely

    • 47
    • 58

    Chance Rain Showers

    • 47
    • 64

    Partly Sunny

    • 48
    • 66

    Mostly Sunny

Today 18 Nov San Bernardino and Riverside County Valleys-The Inland Empire

Partly cloudy with a chance of Showers and a slight chance of Thunderstorms. Highs 55 to 60. Light Winds. Chance of measurable precipitation 50 percent.

Tonight 18 Nov San Bernardino and Riverside County Valleys-The Inland Empire

Partly cloudy. A chance of Showers. Lows 37 to 44. Light Winds. Chance of measurable precipitation 30 percent.

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Etiwanda Temperature Statistics

November Temperature

Ontario International Airport (5.6 miles)

  • Lowest 2 November, 2025

    53.1 °F

  • Average November

    66.2 °F

  • Highest 10 November, 2025

    93 °F

Climate (2020–Present)

Ontario International Airport (5.6 miles)

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  • Average Low 2020–2025

    55.5 °F

  • Average 2020–2025

    66.6 °F

  • Average High 2020–2025

    79 °F
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