Walnut Canyon Reservoir Weather Forecast

    • 53
    • 74

    Increasing Clouds

    • 53
    • 72

    Gradual Clearing

    • 52
    • 73

    Partly Sunny

    • 54
    • 78

    Mostly Sunny

    • 56
    • 80

    Partly Sunny

    • 56
    • 81

    Mostly Sunny

    • 56
    • 79

    Mostly Sunny

Today 15 May Orange County Inland

Cloudy this morning. Becoming mostly sunny. Highs 70 to 74. Areas of Winds south 10 Mph.

Tonight 15 May Orange County Inland

Partly cloudy this Evening, then cloudy with patchy drizzle overnight. Lows 52 to 57. Areas of Winds south 10 Mph this evening becoming light.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Walnut Canyon Reservoir Temperature Statistics

May Temperature

Corona Airport (9.3 miles)

  • Lowest 6 May, 2026

    44.1 °F

  • Average May

    64.8 °F

  • Highest 11 May, 2026

    87.1 °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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