Rio Vista Park Weather Forecast

    • 63
    • 97

    Hot

    • 62
    • 95

    Sunny

    • 63
    • 92

    Sunny

    • 61
    • 94

    Mostly Sunny

    • 59
    • 89

    Partly Sunny

    • 58
    • 83

    Mostly Cloudy

Today 17 Mar Orange County Inland

Mostly sunny. Highs 90 to 94 towards the coast to 93 to 98 farther inland. Areas of Winds northeast to 10 Mph with Gusts to 25 Mph becoming west 10 Mph this afternoon.

Tonight 17 Mar Orange County Inland

Clear. Lows 60 to 66. Light Winds.

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Rio Vista Park Temperature Statistics

March Temperature

Fullerton, Fullerton Municipal Airport (6.8 miles)

  • Lowest 3 March, 2026

    51.7 °F

  • Average March

    67.1 °F

  • Highest 12 March, 2026

    93 °F

Climate (2021–Present)

Fullerton, Fullerton Municipal Airport (6.8 miles)

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  • Average Low 2021–2026

    56.9 °F

  • Average 2021–2026

    66.3 °F

  • Average High 2021–2026

    76.7 °F
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