Walnut Canyon Reservoir Weather Forecast

    • 51
    • 73

    Decreasing Clouds

    • 53
    • 79

    Sunny

    • 54
    • 82

    Partly Sunny

    • 51
    • 80

    Mostly Sunny

    • 52
    • 75

    Mostly Sunny

    • 50
    • 72

    Partly Sunny

Today 16 Apr Orange County Inland

Mostly cloudy this morning. Becoming partly cloudy. Patchy fog this morning. Highs 71 to 75. Light Winds becoming southwest 10 Mph this afternoon.

Tonight 16 Apr Orange County Inland

Mostly clear. Lows 50 to 56. Areas of Winds south 10 to 20 Mph. Gusts to 35 Mph overnight.

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Walnut Canyon Reservoir Temperature Statistics

April Temperature

Corona Airport (9.3 miles)

  • Lowest 13 April, 2026

    43 °F

  • Average April

    65.6 °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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