Big Canyon Reservoir Weather Forecast

    • 62
    • 72

    Gradual Clearing

    • 61
    • 72

    Partly Sunny

    • 61
    • 72

    Mostly Cloudy

    • 60
    • 70

    Mostly Cloudy

    • 61
    • 72

    Partly Sunny

    • 63
    • 75

    Partly Sunny

Today 23 Jul Orange County Coastal

Cloudy in the morning. Becoming mostly sunny. Highs around 72 at the Beaches to 75 to 78 farther inland and near higher coastal Terrain. Light Winds becoming west 10 to 15 Mph in the afternoon.

Tonight 23 Jul Orange County Coastal

Partly cloudy. Lows 59 to 63. Areas of Winds west 10 to 15 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Big Canyon Reservoir Temperature Statistics

July Temperature

John Wayne-Orange County Airport (4.3 miles)

  • Lowest 2 July, 2025

    61.6 °F

  • Average July

    70.9 °F

  • Highest 8 July, 2025

    80.7 °F

Climate (2020–Present)

John Wayne-Orange County Airport (4.3 miles)

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  • Average Low 2020–2025

    58.7 °F

  • Average 2020–2025

    65.6 °F

  • Average High 2020–2025

    73.6 °F
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