Rialto Weather Forecast

    • 51
    • 74

    Chance Rain Showers

    • 43
    • 60

    Chance Rain Showers

    • 43
    • 64

    Breezy

    • 47
    • 70

    Mostly Sunny

    • 50
    • 74

    Breezy

    • 50
    • 75

    Breezy

Today 20 Jan San Bernardino and Riverside County Valleys

Partly cloudy. Highs 71 to 76. Light Winds becoming west 15 Mph in the afternoon.

Tonight 20 Jan San Bernardino and Riverside County Valleys

Partly cloudy. Slight chance of Showers overnight. Patchy fog overnight. Lows 43 to 49. Areas of Winds southwest 15 Mph. Chance of measurable precipitation 20 percent.

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Rialto Temperature Statistics

January Temperature

Corona Airport (19.3 miles)

  • Lowest

  • Average January

  • Highest

Climate (2010–Present)

Corona Airport (19.3 miles)

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  • Average Low 2010–Present

    53.2 °F
  • Average 2010–Present

    66.8 °F
  • Average High 2010–Present

    79.6 °F
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