Fountain Valley Weather Forecast

    • 56
    • 71

    Increasing Clouds

    • 56
    • 69

    Mostly Cloudy

    • 56
    • 71

    Partly Sunny

    • 58
    • 75

    Partly Sunny

    • 58
    • 76

    Partly Sunny

    • 59
    • 76

    Patchy Fog

Today 4 Nov Orange County Inland

Partly cloudy with patchy fog in the morning. Becoming sunny. Highs 72 to 76. Light Winds.

Tonight 4 Nov Orange County Inland

Mostly clear in the Evening, then partly cloudy with patchy fog and drizzle overnight. Lows 50 to 55. Light Winds.

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Fountain Valley Temperature Statistics

November Temperature

John Wayne-Orange County Airport (5 miles)

  • Lowest 1 November, 2025

    61 °F

  • Average November

    64.3 °F

  • Highest 1 November, 2025

    72 °F

Climate (2020–Present)

John Wayne-Orange County Airport (5 miles)

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  • Average Low 2020–2025

    58.6 °F

  • Average 2020–2025

    65.6 °F

  • Average High 2020–2025

    73.4 °F
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