Rancho Cucamonga Weather Forecast

    • 53
    • 71

    Decreasing Clouds

    • 53
    • 66

    Mostly Cloudy

    • 53
    • 66

    Mostly Cloudy

    • 57
    • 75

    Patchy Fog

    • 60
    • 84

    Mostly Sunny

    • 59
    • 85

    Patchy Fog

    • 56
    • 75

    Patchy Fog

Today 25 May San Bernardino and Riverside County Valleys

Partly cloudy in the evening. Becoming mostly cloudy. Patchy fog overnight. Patchy drizzle overnight. Lows 46 to 54. Areas of Winds west 15 Mph with Gusts to 25 Mph in the evening becoming light.

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Rancho Cucamonga Temperature Statistics

May Temperature

Corona Airport (14.3 miles)

  • Lowest 3 May, 2018

    44.6 °F
  • Average May

    63.8 °F
  • Highest 5 May, 2018

    95 °F

Climate (2010–Present)

Corona Airport (14.3 miles)

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  • Average Low 2010–Present

    52.9 °F
  • Average 2010–Present

    66.4 °F
  • Average High 2010–Present

    78.8 °F
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