Griset Park Weather Forecast

    • 66
    • 80

    Becoming Sunny

    • 68
    • 82

    Partly Sunny

    • 69
    • 83

    Mostly Sunny

    • 69
    • 86

    Partly Sunny

    • 68
    • 86

    Partly Sunny

    • 66
    • 82

    Mostly Sunny

Today 22 Sep Orange County Inland

Partly cloudy in the morning. Becoming sunny. Highs 80 to 83. Light Winds becoming west 10 Mph in the afternoon.

Tonight 22 Sep Orange County Inland

Mostly clear. Lows 61 to 66. Areas of Winds southwest to 10 Mph in the evening becoming light.

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Griset Park Temperature Statistics

September Temperature

John Wayne-Orange County Airport (1.9 miles)

  • Lowest 19 September, 2026

    64.9 °F

  • Average September

    76.9 °F

  • Highest 9 September, 2026

    102.7 °F

Climate (2021–2026)

John Wayne-Orange County Airport (1.9 miles)

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  • Average Low 2021–2026

    59.1 °F

  • Average 2021–2026

    66.2 °F

  • Average High 2021–2026

    73.8 °F
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