Fountain Valley Weather Forecast

    • 66
    • 78

    Increasing Clouds

    • 65
    • 77

    Partly Sunny

    • 64
    • 77

    Partly Sunny

    • 63
    • 75

    Partly Sunny

    • 62
    • 74

    Partly Sunny

    • 61
    • 73

    Partly Sunny

Today 14 Jun Orange County Inland

Partly cloudy with patchy fog this morning. Becoming sunny. Highs 81 to 85. Areas of Winds southwest to 10 Mph.

Tonight 14 Jun Orange County Inland

Mostly clear in the evening. Becoming partly cloudy overnight with patchy fog. Lows 59 to 66. Areas of Winds west 10 Mph in the evening becoming light.

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Fountain Valley Temperature Statistics

June Temperature

John Wayne-Orange County Airport (5 miles)

  • Lowest 2 June, 2026

    62.7 °F

  • Average June

    69 °F

  • Highest 12 June, 2026

    82 °F

Climate (2021–Present)

John Wayne-Orange County Airport (5 miles)

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  • Average Low 2021–2026

    59 °F

  • Average 2021–2026

    66 °F

  • Average High 2021–2026

    73.7 °F
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