Etiwanda Weather Forecast

    • 47
    • 65

    Blowing Dust

    • 50
    • 69

    Blowing Dust

    • 50
    • 71

    Breezy

    • 52
    • 74

    Breezy

    • 52
    • 78

    Sunny

    • 53
    • 78

    Sunny

    • 49
    • 77

    Sunny

Today 10 Jan San Bernardino and Riverside County Valleys-The Inland Empire

Sunny. Areas of blowing dust this afternoon. Warmer. Highs 62 to 68. Areas of Winds north 20 to 30 Mph becoming east 25 to 35 Mph this afternoon. Gusts to 55 Mph.

Tonight 10 Jan San Bernardino and Riverside County Valleys-The Inland Empire

Clear. Patchy frost in Colder. Wind Sheltered Locations overnight. Lows 32 to 37 in wind Sheltered Areas to 35 to 45 in warmer Locations. Areas of Winds north 20 to 30 Mph with Gusts to 50 Mph.

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Etiwanda Temperature Statistics

January Temperature

Ontario International Airport (5.6 miles)

  • Lowest 8 January, 2026

    46 °F

  • Average January

    56.6 °F

  • Highest 2 January, 2026

    66 °F

Climate (2021–Present)

Ontario International Airport (5.6 miles)

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  • Average Low 2021–2026

    55.6 °F

  • Average 2021–2026

    66.6 °F

  • Average High 2021–2026

    78.9 °F
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