William R Mason Regional Park Weather Forecast

    • 68
    • 91

    Mostly Sunny

    • 72
    • 89

    Mostly Sunny

    • 71
    • 92

    Mostly Sunny

    • 73
    • 92

    Mostly Sunny

    • 73
    • 94

    Mostly Sunny

    • 73
    • 93

    Partly Sunny

    • 72
    • 91

    Mostly Sunny

Today 23 Aug Orange County Coastal

Mostly sunny. Highs 78 to 83 at the Beaches to 87 to 92 farther inland and near higher coastal Terrain. Light Winds becoming west 10 Mph this afternoon.

Tonight 23 Aug Orange County Coastal

Mostly clear. Lows around 67. Areas of Winds southwest to 10 Mph this evening becoming light.

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William R Mason Regional Park Temperature Statistics

August Temperature

John Wayne-Orange County Airport (2.5 miles)

  • Lowest 5 August, 2026

    68.6 °F

  • Average August

    76.6 °F

  • Highest 9 August, 2026

    89.7 °F

Climate (2021–2026)

John Wayne-Orange County Airport (2.5 miles)

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  • Average Low 2021–2026

    59 °F

  • Average 2021–2026

    66.1 °F

  • Average High 2021–2026

    73.7 °F
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