Fountain Valley Weather Forecast

    • 43
    • 58

    Rain

    • 44
    • 56

    Chance Rain

    • 46
    • 62

    Partly Sunny

    • 49
    • 67

    Mostly Cloudy

    • 46
    • 65

    Chance Rain

    • 46
    • 65

    Mostly Sunny

Today 13 Mar Orange County Inland

Rain this Morning, then partly cloudy with a chance of Showers this afternoon. Rain may be heavy at Times this morning. Highs 55 to 58. Areas of Winds west 15 to 25 Mph. Gusts to 30 Mph. Becoming 40 Mph this afternoon.

Tonight 13 Mar Orange County Inland

Partly cloudy. Lows 40 to 43. Areas of Winds west 15 to 25 Mph with Gusts to 40 Mph. Becoming 10 to 15 Mph with Gusts to 25 Mph overnight.

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  • Temperature Real-Time

Fountain Valley Temperature Statistics

March Temperature

John Wayne-Orange County Airport (5 miles)

  • Lowest 10 March, 2025

    44.1 °F

  • Average March

    57.9 °F

  • Highest 9 March, 2025

    71.8 °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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