Fountain Valley Weather Forecast

    • 56
    • 73

    Decreasing Clouds

    • 57
    • 72

    Partly Sunny

    • 53
    • 67

    Chance Rain Showers

    • 53
    • 68

    Partly Sunny

    • 53
    • 70

    Partly Sunny

    • 54
    • 71

    Partly Sunny

Today 23 Apr Orange County Inland

Partly cloudy this morning. Becoming mostly sunny. Highs 74 to 78. Light Winds becoming southwest 10 to 15 Mph this afternoon.

Tonight 23 Apr Orange County Inland

Mostly clear. Lows 51 to 56. Areas of Winds southwest 10 Mph in the evening becoming light.

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  • Temperature Real-Time

Fountain Valley Temperature Statistics

April Temperature

John Wayne-Orange County Airport (5 miles)

  • Lowest 4 April, 2026

    55.7 °F

  • Average April

    66.8 °F

  • Highest 4 April, 2026

    86.6 °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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