Upper Newport Bay Weather Forecast

    • 67
    • 79

    Mostly Cloudy

    • 66
    • 77

    Mostly Cloudy

    • 65
    • 78

    Partly Sunny

    • 66
    • 78

    Mostly Sunny

    • 66
    • 80

    Partly Sunny

    • 67
    • 80

    Partly Sunny

Today 12 Aug Orange County Coastal

Patchy fog this morning. Partly cloudy. Highs 74 to 77 at the Beaches to 78 to 82 farther inland and near higher coastal Terrain. Areas of Winds southwest to 10 Mph.

Tonight 12 Aug Orange County Coastal

Mostly cloudy. Patchy fog overnight. Lows 64 to 67. Areas of Winds west 10 Mph in the evening becoming light.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Upper Newport Bay Temperature Statistics

August Temperature

John Wayne-Orange County Airport (2.5 miles)

  • Lowest 5 August, 2026

    68.6 °F

  • Average August

    76.8 °F

  • Highest 9 August, 2026

    89.7 °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

    66.1 °F

  • Average High 2021–2026

    73.7 °F
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