Newport Bay - Balboa Coves Weather Forecast

    • 69
    • 80

    Increasing Clouds

    • 67
    • 77

    Partly Sunny

    • 69
    • 79

    Mostly Sunny

    • 70
    • 83

    Mostly Sunny

    • 73
    • 86

    Mostly Sunny

    • 74
    • 87

    Mostly Sunny

Today 29 Sep Orange County Coastal

Mostly sunny. Highs 79 to 82 at the Beaches to 83 to 86 farther inland and near higher coastal Terrain. Light Winds becoming west 10 to 15 Mph with Gusts to 25 Mph this afternoon.

Tonight 29 Sep Orange County Coastal

Mostly clear in the evening. Becoming partly cloudy overnight with patchy fog. Lows 64 to 68. Areas of Winds south 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Newport Bay - Balboa Coves Temperature Statistics

September Temperature

John Wayne-Orange County Airport (5.6 miles)

  • Lowest 2 September, 2026

    65.6 °F

  • Average September

    76.4 °F

  • Highest 9 September, 2026

    102.7 °F

Climate (2021–2026)

John Wayne-Orange County Airport (5.6 miles)

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  • Average Low 2021–2026

    59.1 °F

  • Average 2021–2026

    66.2 °F

  • Average High 2021–2026

    73.8 °F
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