Rosena Park West Weather Forecast

    • 54
    • 72

    Partly Sunny

    • 61
    • 85

    Breezy

    • 64
    • 90

    Mostly Sunny

    • 65
    • 94

    Mostly Sunny

    • 64
    • 94

    Partly Sunny

    • 62
    • 88

    Partly Sunny

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

Cloudy this morning. Becoming mostly sunny. Patchy fog this morning. Warmer. Highs 71 to 76. Areas of Winds south to 10 Mph becoming southwest with Gusts to 25 Mph this afternoon.

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

Mostly clear. Lows 48 to 54. Areas of Winds southwest 10 to 15 Mph with Gusts to 25 Mph in the evening becoming light.

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Rosena Park West Temperature Statistics

May Temperature

Ontario International Airport (8.1 miles)

  • Lowest 4 May, 2025

    53.7 °F

  • Average May

    67.3 °F

  • Highest 10 May, 2025

    103.6 °F

Climate (2020–Present)

Ontario International Airport (8.1 miles)

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  • Average Low 2020–2025

    55.6 °F

  • Average 2020–2025

    66.6 °F

  • Average High 2020–2025

    79.2 °F
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