Walnut Canyon Reservoir Weather Forecast

    • 61
    • 77

    Increasing Clouds

    • 59
    • 77

    Partly Sunny

    • 59
    • 80

    Mostly Sunny

    • 58
    • 82

    Partly Sunny

    • 58
    • 79

    Patchy Fog

    • 58
    • 78

    Partly Sunny

    • 60
    • 81

    Partly Sunny

Today 21 Jul Orange County Inland

Cloudy this morning. Becoming mostly sunny. Patchy fog this morning. Highs 74 to 78. Light Winds becoming southwest 10 Mph this afternoon.

Tonight 21 Jul Orange County Inland

Mostly cloudy with patchy fog and drizzle overnight. Lows 57 to 65. Areas of Winds southwest 10 Mph this evening becoming light.

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Walnut Canyon Reservoir Temperature Statistics

July Temperature

Corona Airport (9.3 miles)

  • Lowest 2 July, 2025

    55 °F

  • Average July

    72 °F

  • Highest 9 July, 2025

    93.9 °F

Climate (2020–Present)

Corona Airport (9.3 miles)

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  • Average Low 2020–2025

    52.3 °F

  • Average 2020–2025

    65.1 °F

  • Average High 2020–2025

    78.2 °F
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