Walnut Canyon Reservoir Weather Forecast

    • 70
    • 100

    Hot

    • 68
    • 97

    Hot

    • 67
    • 97

    Hot

    • 65
    • 93

    Mostly Sunny

    • 62
    • 85

    Partly Sunny

    • 58
    • 79

    Chance Rain Showers

Today 6 Oct Orange County Inland

Sunny, hot. Highs 97 to 101. Light Winds becoming southwest 10 Mph this afternoon.

Tonight 6 Oct Orange County Inland

Clear. Lows 69 to 72. Light Winds.

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Walnut Canyon Reservoir Temperature Statistics

October Temperature

Corona Airport (9.3 miles)

  • Lowest 1 October, 2026

    55.9 °F

  • Average October

    86.6 °F

  • Highest 3 October, 2026

    107.1 °F

Climate (2021–2026)

Corona Airport (9.3 miles)

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  • Average Low 2021–2026

    52.3 °F

  • Average 2021–2026

    65.2 °F

  • Average High 2021–2026

    78.4 °F
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