Rio Vista Park Weather Forecast

    • 57
    • 75

    Increasing Clouds

    • 57
    • 73

    Mostly Cloudy

    • 56
    • 69

    Mostly Cloudy

    • 56
    • 70

    Mostly Cloudy

    • 55
    • 71

    Partly Sunny

    • 57
    • 75

    Mostly Sunny

Today 24 May Orange County Inland

Cloudy this morning. Becoming partly cloudy. Highs 72 to 75. Areas of Winds west to 10 Mph.

Tonight 24 May Orange County Inland

Mostly cloudy. Lows 51 to 57. Areas of Winds west 10 Mph in the evening becoming light.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Rio Vista Park Temperature Statistics

May Temperature

Fullerton, Fullerton Municipal Airport (6.8 miles)

  • Lowest 6 May, 2026

    55.7 °F

  • Average May

    67.8 °F

  • Highest 19 May, 2026

    89.7 °F

Climate (2021–Present)

Fullerton, Fullerton Municipal Airport (6.8 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    57 °F

  • Average 2021–2026

    66.4 °F

  • Average High 2021–2026

    76.8 °F
Get WillyWeather+ to remove ads