William R Mason Regional Park Weather Forecast

    • 62
    • 74

    Increasing Clouds

    • 61
    • 72

    Mostly Cloudy

    • 61
    • 73

    Partly Sunny

    • 59
    • 72

    Partly Sunny

    • 59
    • 73

    Partly Sunny

    • 60
    • 74

    Partly Sunny

Today 27 Jun Orange County Coastal

Mostly cloudy with patchy fog and drizzle in the Morning, then mostly sunny in the afternoon. Highs around 70 at the Beaches to 71 to 75 farther inland and near higher coastal Terrain. Areas of Winds southeast 10 Mph becoming southwest in the afternoon.

Tonight 27 Jun Orange County Coastal

Partly cloudy in the Evening, then mostly cloudy with patchy drizzle overnight. Lows around 60. Areas of Winds west 10 to 15 Mph. Gusts to 25 Mph in the evening.

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William R Mason Regional Park Temperature Statistics

June Temperature

John Wayne-Orange County Airport (2.5 miles)

  • Lowest 21 June, 2026

    60.7 °F

  • Average June

    69.1 °F

  • Highest 12 June, 2026

    82.7 °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 °F

  • Average High 2021–2026

    73.7 °F
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