Fountain Valley Weather Forecast

    • 45
    • 62

    Increasing Clouds

    • 42
    • 59

    Partly Sunny

    • 44
    • 62

    Partly Sunny

    • 47
    • 66

    Partly Sunny

    • 47
    • 68

    Partly Sunny

    • 49
    • 68

    Mostly Cloudy

Today 29 Jan Orange County Inland

Mostly sunny. Highs around 61. Light Winds becoming southwest 10 Mph this afternoon.

Tonight 29 Jan Orange County Inland

Partly cloudy. Lows 41 to 45. Light Winds.

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Fountain Valley Temperature Statistics

January Temperature

John Wayne-Orange County Airport (5 miles)

  • Lowest 16 January, 2025

    44.7 °F

  • Average January

    59.4 °F

  • Highest 22 January, 2025

    86.6 °F

Climate (2020–Present)

John Wayne-Orange County Airport (5 miles)

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  • Average Low 2020–2025

    58.9 °F

  • Average 2020–2025

    65.8 °F

  • Average High 2020–2025

    73.8 °F
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