Upper Newport Bay Weather Forecast

    • 55
    • 80

    Increasing Clouds

    • 55
    • 79

    Partly Sunny

    • 56
    • 81

    Partly Sunny

    • 56
    • 82

    Mostly Sunny

    • 56
    • 83

    Partly Sunny

    • 56
    • 84

    Partly Sunny

Today 21 Mar Orange County Coastal

Patchy fog this morning. Partly cloudy. Highs 75 to 78 at the Beaches to 80 to 85 farther inland and near higher coastal Terrain. Light Winds becoming southwest 10 Mph this afternoon.

Tonight 21 Mar Orange County Coastal

Partly cloudy in the evening. Becoming mostly cloudy. Patchy fog in the Evening, then Areas of fog overnight. Lows around 57. 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

March Temperature

John Wayne-Orange County Airport (2.5 miles)

  • Lowest 6 March, 2026

    52 °F

  • Average March

    69 °F

  • Highest 17 March, 2026

    95.6 °F

Climate (2021–Present)

John Wayne-Orange County Airport (2.5 miles)

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  • Average Low 2021–2026

    58.9 °F

  • Average 2021–2026

    65.9 °F

  • Average High 2021–2026

    73.6 °F
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