Upper Newport Bay Weather Forecast

    • 56
    • 84

    Patchy Fog

    • 53
    • 74

    Mostly Cloudy

    • 53
    • 72

    Partly Sunny

    • 53
    • 72

    Chance Rain

    • 52
    • 69

    Mostly Sunny

    • 55
    • 72

    Partly Sunny

    • 54
    • 71

    Partly Sunny

Today 18 Apr Orange County Coastal

Mostly sunny. Highs 71 to 74 at the Beaches to 76 to 79 farther inland and near higher coastal Terrain. Areas of Winds south 10 to 15 Mph. Gusts to 25 Mph this afternoon.

Tonight 18 Apr Orange County Coastal

Partly cloudy this evening. Becoming mostly cloudy. Lows around 56. Areas of Winds south 10 to 15 Mph with Gusts to 25 Mph this evening becoming light.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Upper Newport Bay Temperature Statistics

April Temperature

John Wayne-Orange County Airport (2.5 miles)

  • Lowest 4 April, 2026

    55.7 °F

  • Average April

    66.8 °F

  • Highest 4 April, 2026

    86.6 °F

Climate (2021–Present)

John Wayne-Orange County Airport (2.5 miles)

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  • Average Low 2021–2026

    59 °F

  • Average 2021–2026

    66 °F

  • Average High 2021–2026

    73.7 °F
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