William R Mason Regional Park Weather Forecast

    • 57
    • 72

    Decreasing Clouds

    • 56
    • 75

    Mostly Sunny

    • 58
    • 77

    Mostly Sunny

    • 58
    • 76

    Mostly Sunny

    • 57
    • 75

    Mostly Sunny

    • 57
    • 73

    Partly Sunny

Today 17 May Orange County Coastal

Cloudy this morning. Becoming mostly cloudy. Highs 68 to 72. Areas of Winds south 10 to 15 Mph.

Tonight 17 May Orange County Coastal

Partly cloudy. Lows 55 to 58. Areas of Winds south 10 to 15 Mph. Gusts to 30 Mph overnight.

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William R Mason Regional Park Temperature Statistics

May Temperature

John Wayne-Orange County Airport (2.5 miles)

  • Lowest 6 May, 2026

    56.6 °F

  • Average May

    65.6 °F

  • Highest 11 May, 2026

    75.7 °F

Climate (2021–Present)

John Wayne-Orange County Airport (2.5 miles)

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  • Average Low 2021–2026

    59 °F

  • Average 2021–2026

    66 °F

  • Average High 2021–2026

    73.7 °F
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