Newport Bay - Promontory Bay Weather Forecast

    • 69
    • 78

    Increasing Clouds

    • 69
    • 77

    Partly Sunny

    • 68
    • 76

    Mostly Cloudy

    • 67
    • 75

    Mostly Cloudy

    • 67
    • 75

    Partly Sunny

    • 67
    • 75

    Partly Sunny

Today 10 Aug Orange County Coastal

Partly cloudy with patchy fog this morning. Becoming mostly sunny. Highs 76 to 79 at the Beaches to 81 to 85 farther inland and near higher coastal Terrain. Light Winds becoming southwest 10 Mph this afternoon.

Tonight 10 Aug Orange County Coastal

Partly cloudy. Patchy fog overnight. Lows 66 to 69. Areas of Winds southwest to 10 Mph in the evening becoming light.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Newport Bay - Promontory Bay Temperature Statistics

August Temperature

John Wayne-Orange County Airport (5 miles)

  • Lowest 5 August, 2026

    68.6 °F

  • Average August

    76.3 °F

  • Highest 8 August, 2026

    84.9 °F

Climate (2021–2026)

John Wayne-Orange County Airport (5 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    59 °F

  • Average 2021–2026

    66.1 °F

  • Average High 2021–2026

    73.7 °F
Get WillyWeather+ to remove ads