Vista Grande Park Weather Forecast

    • 70
    • 94

    Mostly Sunny

    • 70
    • 88

    Chance Rain Showers

    • 69
    • 83

    Chance Thunderstorms

    • 67
    • 83

    Slight Chance Thunderstorms

    • 67
    • 85

    Partly Sunny

    • 68
    • 86

    Patchy Fog

Today 16 Sep Orange County Inland

Patchy fog this morning. Mostly sunny. Highs around 90 towards the coast to 93 farther inland. Light Winds becoming west 10 Mph this afternoon.

Tonight 16 Sep Orange County Inland

Mostly clear in the evening. Becoming partly cloudy. Lows around 70. Areas of Winds southwest to 10 Mph in the evening becoming light.

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Vista Grande Park Temperature Statistics

September Temperature

Fullerton, Fullerton Municipal Airport (3.7 miles)

  • Lowest 11 September, 2025

    64.9 °F

  • Average September

    74.4 °F

  • Highest 2 September, 2025

    97 °F

Climate (2020–Present)

Fullerton, Fullerton Municipal Airport (3.7 miles)

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  • Average Low 2020–2025

    56.7 °F

  • Average 2020–2025

    66.1 °F

  • Average High 2020–2025

    76.7 °F
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