Sand Canyon Reservoir Weather Forecast

    • 62
    • 79

    Increasing Clouds

    • 62
    • 77

    Mostly Cloudy

    • 61
    • 77

    Mostly Sunny

    • 62
    • 79

    Mostly Sunny

    • 63
    • 81

    Mostly Sunny

    • 62
    • 79

    Partly Sunny

    • 62
    • 78

    Mostly Sunny

Today 15 Sep Orange County Coastal

Partly cloudy this morning. Becoming mostly sunny. Highs around 74 at the Beaches to 75 to 79 farther inland and near higher coastal Terrain. Areas of Winds east 10 Mph becoming south this afternoon.

Tonight 15 Sep Orange County Coastal

Partly cloudy this Evening, then mostly cloudy with patchy drizzle overnight. Lows 61 to 65. Areas of Winds south 10 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Sand Canyon Reservoir Temperature Statistics

September Temperature

John Wayne-Orange County Airport (4.3 miles)

  • Lowest 2 September, 2026

    65.6 °F

  • Average September

    78.3 °F

  • Highest 9 September, 2026

    102.7 °F

Climate (2021–2026)

John Wayne-Orange County Airport (4.3 miles)

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

  • Average Low 2021–2026

    59.1 °F

  • Average 2021–2026

    66.2 °F

  • Average High 2021–2026

    73.8 °F
Get WillyWeather+ to remove ads