Etiwanda Weather Forecast

    • 69
    • 97

    Hot

    • 70
    • 102

    Hot

    • 66
    • 99

    Hot

    • 65
    • 92

    Partly Sunny

    • 65
    • 91

    Mostly Sunny

    • 66
    • 92

    Mostly Sunny

Today 14 Jul San Bernardino and Riverside County Valleys-The Inland Empire

Mostly sunny. Warmer. Highs 95 to 102. Areas of Winds west to 10 Mph. Becoming 10 to 15 Mph with Gusts to 30 Mph this afternoon.

Tonight 14 Jul San Bernardino and Riverside County Valleys-The Inland Empire

Mostly clear. Lows 65 to 70. Areas of Winds west 10 to 15 Mph with Gusts to 25 Mph in the evening becoming light.

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Etiwanda Temperature Statistics

July Temperature

Ontario International Airport (5.6 miles)

  • Lowest 3 July, 2026

    59.6 °F

  • Average July

    77.6 °F

  • Highest 7 July, 2026

    97.6 °F

Climate (2021–2026)

Ontario International Airport (5.6 miles)

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  • Average Low 2021–2026

    55.8 °F

  • Average 2021–2026

    67 °F

  • Average High 2021–2026

    79.3 °F
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