Newport Bay - Harbor Island Weather Forecast

    • 69
    • 86

    Mostly Sunny

    • 65
    • 79

    Mostly Sunny

    • 62
    • 71

    Partly Sunny

    • 63
    • 72

    Partly Sunny

    • 62
    • 72

    Partly Sunny

    • 61
    • 71

    Partly Sunny

Today 9 Sep Orange County Coastal

Mostly sunny. Hazy this afternoon. Highs 85 to 90 at the Beaches to 95 to 100 farther inland and near higher coastal Terrain. Light Winds becoming west 10 to 15 Mph with Gusts to 25 Mph this afternoon.

Tonight 9 Sep Orange County Coastal

Mostly clear. Lows around 68. Areas of Winds west 10 to 15 Mph with Gusts to 25 Mph becoming south overnight.

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  • Temperature Forecast NOAA

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Newport Bay - Harbor Island Temperature Statistics

September Temperature

John Wayne-Orange County Airport (5 miles)

  • Lowest 1 September, 2024

    68.6 °F

  • Average September

    77.9 °F

  • Highest 6 September, 2024

    104 °F

Climate (2019–Present)

John Wayne-Orange County Airport (5 miles)

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  • Average Low 2019–2024

    59 °F

  • Average 2019–2024

    65.8 °F

  • Average High 2019–2024

    73.9 °F
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