Rancho Cucamonga Weather Forecast

    • 66
    • 93

    Sunny

    • 64
    • 93

    Mostly Sunny

    • 64
    • 93

    Mostly Sunny

    • 62
    • 87

    Mostly Sunny

    • 61
    • 87

    Patchy Fog

    • 63
    • 88

    Mostly Sunny

    • 68
    • 95

    Mostly Sunny

Today 19 Jun San Bernardino and Riverside County Valleys-The Inland Empire

Mostly sunny. Highs 94 to 101. Light Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Rancho Cucamonga Temperature Statistics

June Temperature

Ontario International Airport (3.7 miles)

  • Lowest 10 June, 2021

    55.9 °F
  • Average June

    74.4 °F
  • Highest 15 June, 2021

    105.1 °F

Climate (2010–Present)

Ontario International Airport (3.7 miles)

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  • Average Low 2010–Present

    56 °F
  • Average 2010–Present

    66.2 °F
  • Average High 2010–Present

    79.1 °F
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