Walnut Canyon Reservoir Weather Forecast

    • 64
    • 85

    Becoming Sunny

    • 65
    • 87

    Mostly Sunny

    • 64
    • 88

    Mostly Sunny

    • 63
    • 85

    Partly Sunny

    • 65
    • 83

    Partly Sunny

    • 66
    • 84

    Partly Sunny

Today 7 Jul Orange County Inland

Mostly sunny. Highs 78 to 83 towards the coast to 84 to 88 farther inland. Light Winds becoming southwest 10 Mph this afternoon.

Tonight 7 Jul Orange County Inland

Mostly clear. Patchy fog overnight. Lows 61 to 66. Areas of Winds southwest to 10 Mph in the evening becoming light.

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Walnut Canyon Reservoir Temperature Statistics

July Temperature

Corona Airport (9.3 miles)

  • Lowest 3 July, 2026

    53.1 °F

  • Average July

    69.3 °F

  • Highest 3 July, 2026

    89.1 °F

Climate (2021–2026)

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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