Ontario Weather Forecast

    • 60
    • 79

    Patchy Fog

    • 60
    • 82

    Patchy Fog

    • 58
    • 77

    Partly Sunny

    • 56
    • 75

    Patchy Fog

    • 57
    • 79

    Patchy Fog

    • 59
    • 81

    Patchy Fog

Today 18 Jun San Bernardino and Riverside County Valleys

Areas of low Clouds and fog in the morning then mostly sunny. Highs 80 to 86. Light Winds becoming west 15 Mph in the afternoon.

Tonight 18 Jun San Bernardino and Riverside County Valleys

Mostly clear in the evening then patchy low Clouds and fog. Lows 55 to 60. Areas of Winds west 15 Mph in the evening becoming light.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Ontario Temperature Statistics

June Temperature

Corona Airport (11.8 miles)

  • Lowest 4 June, 2019

    55.4 °F
  • Average June

    69 °F
  • Highest 11 June, 2019

    102 °F

Climate (2010–Present)

Corona Airport (11.8 miles)

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  • Average Low 2010–Present

    52.9 °F
  • Average 2010–Present

    66.1 °F
  • Average High 2010–Present

    78.8 °F
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