Fontana Gateway Weather Forecast

    • 56
    • 80

    Patchy Fog

    • 57
    • 82

    Mostly Sunny

    • 59
    • 84

    Mostly Sunny

    • 57
    • 82

    Patchy Fog

    • 56
    • 80

    Patchy Fog

    • 56
    • 79

    Patchy Fog

Today 10 May San Bernardino and Riverside County Valleys-The Inland Empire

Partly cloudy with patchy fog in the morning. Becoming mostly sunny. Highs 78 to 83. Light Winds becoming west 10 to 20 Mph with Gusts to 30 Mph in the afternoon.

Tonight 10 May San Bernardino and Riverside County Valleys-The Inland Empire

Mostly clear in the evening. Becoming partly cloudy overnight with patchy fog. Lows 49 to 55. Areas of Winds west 10 to 15 Mph with Gusts to 30 Mph in the evening becoming light.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Fontana Gateway Temperature Statistics

May Temperature

Ontario International Airport (3.1 miles)

  • Lowest 6 May, 2024

    48.9 °F

  • Average May

    62.6 °F

  • Highest 6 May, 2024

    77 °F

Climate (2019–Present)

Ontario International Airport (3.1 miles)

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  • Average Low 2019–2024

    55.7 °F

  • Average 2019–2024

    66.3 °F

  • Average High 2019–2024

    78.9 °F
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