Rio Vista Park Weather Forecast

    • 69
    • 89

    Partly Sunny

    • 69
    • 89

    Mostly Sunny

    • 68
    • 88

    Mostly Sunny

    • 68
    • 87

    Mostly Sunny

    • 69
    • 90

    Mostly Sunny

    • 70
    • 92

    Mostly Sunny

Today 26 Jul Orange County Inland

Partly cloudy. A slight chance of Showers this morning. Highs 85 to 88 towards the coast to 90 to 93 farther inland. Light Winds becoming southwest 10 Mph this afternoon. Chance of measurable precipitation 20 percent.

Tonight 26 Jul Orange County Inland

Partly cloudy. Lows 64 to 70. Light Winds.

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Rio Vista Park Temperature Statistics

July Temperature

Fullerton, Fullerton Municipal Airport (6.8 miles)

  • Lowest 3 July, 2026

    61.6 °F

  • Average July

    76.7 °F

  • Highest 15 July, 2026

    92.6 °F

Climate (2021–2026)

Fullerton, Fullerton Municipal Airport (6.8 miles)

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  • Average Low 2021–2026

    57 °F

  • Average 2021–2026

    66.5 °F

  • Average High 2021–2026

    76.8 °F
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