Walnut Canyon Reservoir Weather Forecast

    • 73
    • 95

    Decreasing Clouds

    • 73
    • 98

    Hot

    • 68
    • 93

    Mostly Sunny

    • 63
    • 88

    Mostly Sunny

    • 60
    • 83

    Mostly Sunny

    • 60
    • 83

    Sunny

Today 8 Sep Orange County Inland

Partly cloudy this morning. Becoming mostly sunny. Highs 94 to 98. Light Winds becoming west 10 to 15 Mph this afternoon.

Tonight 8 Sep Orange County Inland

Mostly clear in the evening. Becoming partly cloudy. Lows 72 to 76. Areas of Winds west to 10 Mph in the evening becoming light.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Walnut Canyon Reservoir Temperature Statistics

September Temperature

Corona Airport (9.3 miles)

  • Lowest 2 September, 2026

    53.1 °F

  • Average September

    69.5 °F

  • Highest 5 September, 2026

    93 °F

Climate (2021–2026)

Corona Airport (9.3 miles)

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

  • Average Low 2021–2026

    52.3 °F

  • Average 2021–2026

    65.1 °F

  • Average High 2021–2026

    78.4 °F
Get WillyWeather+ to remove ads