Fontana Weather Forecast

    • 58
    • 83

    Sunny

    • 59
    • 84

    Mostly Sunny

    • 60
    • 83

    Mostly Sunny

    • 59
    • 82

    Mostly Sunny

    • 59
    • 83

    Sunny

    • 58
    • 79

    Partly Sunny

Today 7 Nov San Bernardino and Riverside County Valleys-The Inland Empire

Sunny. Highs 79 to 86. Areas of Winds north 10 to 15 Mph. Gusts to 35 Mph. Becoming 30 Mph this afternoon.

Tonight 7 Nov San Bernardino and Riverside County Valleys-The Inland Empire

Clear. Lows 54 to 58. Areas of Winds east 10 to 15 Mph. Gusts to 25 Mph in the evening.

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Fontana Temperature Statistics

November Temperature

Ontario International Airport (8.1 miles)

  • Lowest 2 November, 2026

    51.1 °F

  • Average November

    63.1 °F

  • Highest 3 November, 2026

    75 °F

Climate (2021–2026)

Ontario International Airport (8.1 miles)

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  • Average Low 2021–2026

    55.9 °F

  • Average 2021–2026

    67.3 °F

  • Average High 2021–2026

    79.4 °F
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