Fountain Valley Weather Forecast

    • 55
    • 69

    Increasing Clouds

    • 55
    • 68

    Partly Sunny

    • 55
    • 69

    Mostly Cloudy

    • 53
    • 67

    Mostly Cloudy

    • 53
    • 64

    Mostly Cloudy

    • 54
    • 63

    Partly Sunny

    • 53
    • 68

    Mostly Sunny

Today 30 Apr Orange County Inland

Mostly cloudy this morning. Becoming mostly sunny. Patchy fog this morning. Highs around 70 towards the coast to 71 to 74 farther inland. Light Winds becoming southwest 10 Mph this afternoon.

Tonight 30 Apr Orange County Inland

Partly cloudy this evening. Becoming cloudy. Patchy fog overnight. Lows 50 to 55. Areas of Winds southwest 10 Mph this evening becoming light.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Fountain Valley Temperature Statistics

April Temperature

John Wayne-Orange County Airport (5 miles)

  • Lowest 4 April, 2025

    51.7 °F

  • Average April

    62.5 °F

  • Highest 5 April, 2025

    81.6 °F

Climate (2020–Present)

John Wayne-Orange County Airport (5 miles)

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  • Average Low 2020–2025

    58.8 °F

  • Average 2020–2025

    65.7 °F

  • Average High 2020–2025

    73.7 °F
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