Sierra Lakes Weather Forecast

    • 48
    • 63

    Rain Showers Likely

    • 41
    • 53

    Rain Showers

    • 42
    • 58

    Mostly Sunny

    • 43
    • 62

    Mostly Sunny

    • 45
    • 61

    Partly Sunny

    • 47
    • 55

    Rain

    • 40
    • 54

    Rain Likely

Today 8 Dec San Bernardino and Riverside County Valleys-The Inland Empire

Partly cloudy. Highs 63 to 68. Light Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Sierra Lakes Temperature Statistics

December Temperature

Ontario International Airport (9.3 miles)

  • Lowest 5 December, 2021

    42.1 °F
  • Average December

    56.4 °F
  • Highest 1 December, 2021

    87.1 °F

Climate (2010–Present)

Ontario International Airport (9.3 miles)

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  • Average Low 2010–Present

    56.8 °F
  • Average 2010–Present

    67.1 °F
  • Average High 2010–Present

    80.3 °F
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