Rialto Weather Forecast

    • 55
    • 79

    Patchy Fog

    • 56
    • 77

    Decreasing Clouds

    • 55
    • 72

    Mostly Cloudy

    • 54
    • 73

    Patchy Fog

    • 55
    • 77

    Patchy Fog

    • 56
    • 80

    Patchy Fog

    • 57
    • 83

    Partly Sunny

Today 20 May San Bernardino and Riverside County Valleys

Partly cloudy in the evening. Becoming cloudy. Patchy fog overnight. Patchy drizzle overnight. Lows 47 to 55. Areas of Winds southwest 15 Mph with Gusts to 25 Mph in the evening becoming light.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Rialto Temperature Statistics

May Temperature

Corona Airport (19.3 miles)

  • Lowest 3 May, 2018

    44.6 °F
  • Average May

    64.2 °F
  • Highest 5 May, 2018

    95 °F

Climate (2010–Present)

Corona Airport (19.3 miles)

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  • Average Low 2010–Present

    52.9 °F
  • Average 2010–Present

    66.4 °F
  • Average High 2010–Present

    78.8 °F
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