Rialto Weather Forecast

    • 51
    • 71

    Decreasing Clouds

    • 50
    • 68

    Mostly Sunny

    • 51
    • 72

    Mostly Sunny

    • 50
    • 71

    Mostly Sunny

    • 49
    • 70

    Partly Sunny

    • 50
    • 66

    Partly Sunny

    • 51
    • 66

    Partly Sunny

Today 10 Dec San Bernardino and Riverside County Valleys

Partly cloudy. Colder. Lows 40 to 48. Light Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Rialto Temperature Statistics

December Temperature

Corona Airport (19.3 miles)

  • Lowest 2 December, 2018

    37 °F
  • Average December

    54.1 °F
  • Highest 4 December, 2018

    72 °F

Climate (2010–Present)

Corona Airport (19.3 miles)

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  • Average Low 2010–Present

    53.6 °F
  • Average 2010–Present

    67 °F
  • Average High 2010–Present

    79.6 °F
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