William R Mason Regional Park Weather Forecast

    • 73
    • 102

    Hot

    • 74
    • 99

    Hot

    • 73
    • 97

    Hot

    • 74
    • 95

    Mostly Sunny

    • 72
    • 93

    Mostly Sunny

    • 71
    • 91

    Mostly Sunny

    • 69
    • 88

    Mostly Sunny

Today 3 Oct Orange County Coastal

Partly cloudy. Highs 76 to 79 at the Beaches to 79 to 83 farther inland and near higher coastal Terrain.

Tonight 3 Oct Orange County Coastal

Clear. Lows around 73. Areas of Winds northwest to 10 Mph becoming east 10 Mph overnight.

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William R Mason Regional Park Temperature Statistics

October Temperature

John Wayne-Orange County Airport (2.5 miles)

  • Lowest 1 October, 2026

    66.9 °F

  • Average October

    73.1 °F

  • Highest 1 October, 2026

    81 °F

Climate (2021–2026)

John Wayne-Orange County Airport (2.5 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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