Rancho Cucamonga Weather Forecast

    • 56
    • 77

    Mostly Sunny

    • 56
    • 79

    Mostly Sunny

    • 54
    • 80

    Mostly Sunny

    • 56
    • 78

    Mostly Sunny

    • 58
    • 82

    Mostly Sunny

    • 58
    • 84

    Mostly Sunny

    • 54
    • 81

    Mostly Sunny

Today 28 Apr San Bernardino and Riverside County Valleys-The Inland Empire

Mostly sunny. Warmer. Highs 76 to 80. Light Winds becoming west 10 to 15 Mph with Gusts to 25 Mph this afternoon.

Tonight 28 Apr San Bernardino and Riverside County Valleys-The Inland Empire

Mostly clear. Lows 50 to 55. Areas of Winds west 10 to 15 Mph with Gusts to 25 Mph this evening becoming light.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Rancho Cucamonga Temperature Statistics

April Temperature

Ontario International Airport (3.7 miles)

  • Lowest 6 April, 2024

    41.6 °F

  • Average April

    61 °F

  • Highest 11 April, 2024

    88.6 °F

Climate (2019–Present)

Ontario International Airport (3.7 miles)

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  • Average Low 2019–2024

    55.7 °F

  • Average 2019–2024

    66.3 °F

  • Average High 2019–2024

    78.9 °F
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