Cucamonga-Guasti Regional Park Weather Forecast

    • 51
    • 77

    Mostly Sunny

    • 55
    • 84

    Sunny

    • 55
    • 84

    Mostly Sunny

    • 55
    • 82

    Mostly Cloudy

    • 52
    • 73

    Partly Sunny

    • 51
    • 73

    Mostly Sunny

    • 51
    • 76

    Mostly Sunny

Today 2 Feb San Bernardino and Riverside County Valleys-The Inland Empire

Partly cloudy this morning. Becoming mostly sunny. Highs 74 to 79. Light Winds becoming west to 10 Mph this afternoon.

Tonight 2 Feb San Bernardino and Riverside County Valleys-The Inland Empire

Mostly clear. Lows 44 to 47 in wind Sheltered Areas to 47 to 57 in warmer Locations. Areas of Winds east to 10 Mph becoming north with Gusts to 25 Mph overnight.

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Cucamonga-Guasti Regional Park Temperature Statistics

February Temperature

Ontario International Airport (1.2 miles)

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Climate (2021–Present)

Ontario International Airport (1.2 miles)

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  • Average Low 2021–2026

    55.6 °F

  • Average 2021–2026

    66.7 °F

  • Average High 2021–2026

    79 °F
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