Walnut Canyon Reservoir Weather Forecast

    • 55
    • 80

    Mostly Sunny

    • 55
    • 81

    Mostly Sunny

    • 55
    • 79

    Partly Sunny

    • 52
    • 70

    Partly Sunny

    • 55
    • 74

    Partly Sunny

    • 55
    • 78

    Mostly Sunny

Today 19 Oct Orange County Inland

Partly cloudy with patchy fog in the morning. Becoming mostly sunny. Highs around 78 towards the coast to 79 to 82 farther inland. Light Winds.

Tonight 19 Oct Orange County Inland

Partly cloudy. Patchy fog overnight. Lows 54 to 58. Light Winds.

Graph Plots Open in Graphs
  • Temperature Forecast NOAA

  • Temperature Real-Time

Walnut Canyon Reservoir Temperature Statistics

October Temperature

Corona Airport (9.3 miles)

  • Lowest 16 October, 2025

    44.1 °F
  • Average October

    64.9 °F
  • Highest 10 October, 2025

    91 °F

Climate (2020–Present)

Corona Airport (9.3 miles)

Take a look at our website widgetsAvailable free! Find Out More
  • Average Low 2020–2025

    52.1 °F
  • Average 2020–2025

    64.8 °F
  • Average High 2020–2025

    78 °F
Get WillyWeather+ to remove ads