Fountain Valley Weather Forecast

    • 69
    • 80

    Increasing Clouds

    • 68
    • 79

    Mostly Cloudy

    • 68
    • 80

    Mostly Cloudy

    • 68
    • 80

    Partly Sunny

    • 68
    • 80

    Partly Sunny

    • 68
    • 81

    Partly Sunny

Today 21 Aug Orange County Inland

Areas of low Clouds and fog in the morning then mostly sunny. Highs around 82 towards the coast to 86 farther inland. Light Winds.

Tonight 21 Aug Orange County Inland

Partly cloudy in the evening then low Clouds and fog. Lows 63 to 69. Light Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Fountain Valley Temperature Statistics

August Temperature

Santa Ana, John Wayne Airport-Orange County Airport (5 miles)

  • Lowest 5 August, 2018

    68 °F
  • Average August

    76.6 °F
  • Highest 8 August, 2018

    91.9 °F

Climate (2010–Present)

Santa Ana, John Wayne Airport-Orange County Airport (5 miles)

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  • Average Low 2010–Present

    58.3 °F
  • Average 2010–Present

    65.1 °F
  • Average High 2010–Present

    73.7 °F
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