Cucamonga-Guasti Regional Park Weather Forecast

    • 34
    • 55

    Mostly Sunny

    • 36
    • 57

    Mostly Sunny

    • 41
    • 55

    Rain Showers Likely

    • 38
    • 50

    Rain Showers Likely

    • 37
    • 55

    Mostly Sunny

    • 41
    • 58

    Partly Sunny

    • 43
    • 61

    Partly Sunny

Today 18 Feb San Bernardino and Riverside County Valleys

Mostly clear. Isolated Showers in the evening. Patchy frost in Colder. Wind Sheltered Locations overnight. Colder. Lows 26 to 34. Areas of Winds north 15 to 20 Mph. Gusts to 30 Mph. Becoming 35 Mph overnight. Chance of measurable precipitation 20 percent.

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Cucamonga-Guasti Regional Park Temperature Statistics

February Temperature

Ontario, Ontario International Airport (1.2 miles)

  • Lowest

  • Average February

  • Highest

Climate (2010–Present)

Ontario, Ontario International Airport (1.2 miles)

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  • Average Low 2010–Present

    55.7 °F
  • Average 2010–Present

    66.2 °F
  • Average High 2010–Present

    79.4 °F
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