William R Mason Regional Park Weather Forecast

    • 56
    • 78

    Patchy Fog

    • 59
    • 82

    Partly Sunny

    • 57
    • 80

    Partly Sunny

    • 57
    • 79

    Mostly Cloudy

    • 55
    • 75

    Slight Chance Rain Showers

    • 54
    • 74

    Mostly Cloudy

Today 27 Mar Orange County Coastal

Patchy fog this morning. Partly cloudy. Highs around 72 at the Beaches to 75 to 80 farther inland and near higher coastal Terrain. Light Winds becoming southwest 10 Mph this afternoon.

Tonight 27 Mar Orange County Coastal

Partly cloudy. Patchy fog overnight. Lows around 57. Areas of Winds southwest to 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

    68.9 °F

  • Highest 17 March, 2026

    95.6 °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

    65.9 °F

  • Average High 2021–2026

    73.7 °F
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