William R Mason Regional Park Weather Forecast

    • 60
    • 92

    Mostly Sunny

    • 60
    • 91

    Sunny

    • 59
    • 93

    Mostly Sunny

    • 57
    • 87

    Patchy Fog

    • 56
    • 82

    Patchy Fog

    • 56
    • 80

    Patchy Fog

Today 18 Mar Orange County Coastal

Mostly sunny. Highs 82 to 86 at the Beaches to 88 to 93 farther inland and near higher coastal Terrain. Light Winds becoming southwest 10 Mph this afternoon.

Tonight 18 Mar Orange County Coastal

Mostly clear. Patchy fog overnight. Lows around 60. Areas of Winds south 10 Mph in the evening becoming light.

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William R Mason Regional Park Temperature Statistics

March Temperature

John Wayne-Orange County Airport (2.5 miles)

  • Lowest 6 March, 2026

    52 °F

  • Average March

    66.5 °F

  • Highest 12 March, 2026

    91 °F

Climate (2021–Present)

John Wayne-Orange County Airport (2.5 miles)

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  • Average Low 2021–2026

    58.9 °F

  • Average 2021–2026

    65.8 °F

  • Average High 2021–2026

    73.6 °F
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