Etiwanda Weather Forecast

    • 48
    • 65

    Mostly Sunny

    • 51
    • 69

    Partly Sunny

    • 53
    • 72

    Partly Sunny

    • 49
    • 74

    Mostly Cloudy

    • 51
    • 64

    Chance Rain Showers

    • 47
    • 61

    Chance Rain Showers

Today 31 Jan San Bernardino and Riverside County Valleys-The Inland Empire

Partly cloudy. Highs 65 to 68. Light Winds becoming west to 10 Mph in the afternoon.

Tonight 31 Jan San Bernardino and Riverside County Valleys-The Inland Empire

Mostly clear. Lows 39 to 43 in wind Sheltered Areas to 42 to 49 in warmer Locations. Areas of Winds west to 10 Mph in the evening becoming light.

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Etiwanda Temperature Statistics

January Temperature

Ontario International Airport (5.6 miles)

  • Lowest 11 January, 2025

    39.7 °F

  • Average January

    57.1 °F

  • Highest 2 January, 2025

    85.6 °F

Climate (2020–Present)

Ontario International Airport (5.6 miles)

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  • Average Low 2020–2025

    55.6 °F

  • Average 2020–2025

    66.6 °F

  • Average High 2020–2025

    79.1 °F
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