Walnut Canyon Reservoir Weather Forecast

    • 57
    • 84

    Mostly Sunny

    • 59
    • 86

    Partly Sunny

    • 59
    • 88

    Partly Sunny

    • 57
    • 87

    Partly Sunny

    • 57
    • 81

    Mostly Cloudy

    • 54
    • 74

    Partly Sunny

Today 26 Mar Orange County Inland

Partly cloudy with patchy fog in the morning. Becoming mostly sunny. Highs around 79 towards the coast to 82 to 85 farther inland. Light Winds becoming west 10 Mph in the afternoon.

Tonight 26 Mar Orange County Inland

Mostly clear. Lows 56 to 59. Areas of Winds southwest to 10 Mph in the evening becoming light.

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Walnut Canyon Reservoir Temperature Statistics

March Temperature

Corona Airport (9.3 miles)

  • Lowest 3 March, 2026

    42.1 °F

  • Average March

    68.1 °F

  • Highest 19 March, 2026

    98.1 °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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