Walnut Canyon Reservoir Weather Forecast

    • 55
    • 79

    Partly Sunny

    • 57
    • 74

    Chance Rain Showers

    • 52
    • 68

    Rain Showers Likely

    • 46
    • 64

    Chance Rain Showers

    • 47
    • 67

    Mostly Sunny

    • 51
    • 74

    Partly Sunny

Today 9 Apr Orange County Inland

Patchy fog this morning. Partly cloudy. Highs 76 to 80. Areas of Winds south to 10 Mph becoming southwest with Gusts to 25 Mph this afternoon.

Tonight 9 Apr Orange County Inland

Partly cloudy. Patchy fog overnight. Lows 54 to 58. Areas of Winds southwest 10 Mph in the evening becoming light.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Walnut Canyon Reservoir Temperature Statistics

April Temperature

Corona Airport (9.3 miles)

  • Lowest 3 April, 2026

    46.9 °F

  • Average April

    68.8 °F

  • Highest 4 April, 2026

    91 °F

Climate (2021–Present)

Corona Airport (9.3 miles)

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  • Average Low 2021–2026

    52.3 °F

  • Average 2021–2026

    65.1 °F

  • Average High 2021–2026

    78.3 °F
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