Newport Bay - Balboa Island Weather Forecast

    • 66
    • 78

    Mostly Sunny

    • 65
    • 76

    Partly Sunny

    • 65
    • 73

    Mostly Cloudy

    • 64
    • 71

    Mostly Cloudy

    • 63
    • 71

    Partly Sunny

    • 64
    • 73

    Partly Sunny

Today 7 Sep Orange County Coastal

Partly cloudy with patchy fog this morning. Becoming mostly sunny. Highs 76 to 80 at the Beaches to 82 to 87 farther inland and near higher coastal Terrain. Light Winds becoming southwest 10 Mph this afternoon.

Tonight 7 Sep Orange County Coastal

Mostly clear in the evening. Becoming partly cloudy. Lows 62 to 66. Areas of Winds southwest to 10 Mph in the evening becoming light.

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Newport Bay - Balboa Island Temperature Statistics

September Temperature

John Wayne-Orange County Airport (5 miles)

  • Lowest 5 September, 2025

    66.9 °F

  • Average September

    75.1 °F

  • Highest 3 September, 2025

    86 °F

Climate (2020–Present)

John Wayne-Orange County Airport (5 miles)

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  • Average Low 2020–2025

    58.7 °F

  • Average 2020–2025

    65.7 °F

  • Average High 2020–2025

    73.6 °F
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