Rancho Mira Loma Park Weather Forecast

    • 59
    • 88

    Becoming Sunny

    • 60
    • 89

    Mostly Sunny

    • 61
    • 93

    Partly Sunny

    • 59
    • 92

    Mostly Sunny

    • 58
    • 84

    Mostly Cloudy

    • 54
    • 75

    Mostly Cloudy

Today 26 Mar San Bernardino and Riverside County Valleys-The Inland Empire

Mostly sunny. Highs 85 to 90. Light Winds becoming west 10 to 15 Mph with Gusts to 25 Mph this afternoon.

Tonight 26 Mar San Bernardino and Riverside County Valleys-The Inland Empire

Clear. Lows 49 to 54 in wind Sheltered Areas to 54 to 62 in warmer Locations. Areas of Winds west to 10 Mph in the evening becoming light.

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Rancho Mira Loma Park Temperature Statistics

March Temperature

Ontario International Airport (3.7 miles)

  • Lowest 6 March, 2026

    51.1 °F

  • Average March

    71.1 °F

  • Highest 19 March, 2026

    100.7 °F

Climate (2021–Present)

Ontario International Airport (3.7 miles)

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  • Average Low 2021–2026

    55.8 °F

  • Average 2021–2026

    66.9 °F

  • Average High 2021–2026

    79.3 °F
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