Newport Bay - Promontory Bay Weather Forecast

    • 65
    • 73

    Increasing Clouds

    • 64
    • 71

    Mostly Cloudy

    • 64
    • 71

    Mostly Cloudy

    • 64
    • 72

    Partly Sunny

    • 64
    • 73

    Partly Sunny

    • 64
    • 74

    Partly Sunny

Today 19 Jul Orange County Coastal

Mostly cloudy in the morning. Becoming mostly sunny. Highs around 72 at the Beaches to 77 farther inland and near higher coastal Terrain. Areas of Winds south to 10 Mph.

Tonight 19 Jul Orange County Coastal

Mostly clear in the evening. Becoming mostly cloudy. Lows 62 to 65. Areas of Winds southwest 10 Mph in the evening becoming light.

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Newport Bay - Promontory Bay Temperature Statistics

July Temperature

John Wayne-Orange County Airport (5 miles)

  • Lowest 3 July, 2025

    61 °F

  • Average July

    70.1 °F

  • Highest 8 July, 2025

    80.7 °F

Climate (2020–Present)

John Wayne-Orange County Airport (5 miles)

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  • Average Low 2020–2025

    58.6 °F

  • Average 2020–2025

    65.6 °F

  • Average High 2020–2025

    73.6 °F
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