Lower Peters Canyon Reservoir Weather Forecast

    • 71
    • 95

    Becoming Sunny

    • 67
    • 89

    Mostly Sunny

    • 64
    • 84

    Mostly Sunny

    • 63
    • 82

    Mostly Sunny

    • 61
    • 81

    Mostly Sunny

    • 60
    • 79

    Mostly Sunny

Today 10 Sep Orange County Inland

Mostly sunny. Highs 89 to 93 towards the coast to 95 to 98 farther inland. Light Winds becoming south 10 Mph in the afternoon.

Tonight 10 Sep Orange County Inland

Mostly clear. Lows 68 to 72. Areas of Winds south 10 Mph in the evening becoming light.

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Lower Peters Canyon Reservoir Temperature Statistics

September Temperature

John Wayne-Orange County Airport (7.5 miles)

  • Lowest 2 September, 2026

    65.6 °F

  • Average September

    74.6 °F

  • Highest 7 September, 2026

    91.9 °F

Climate (2021–2026)

John Wayne-Orange County Airport (7.5 miles)

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  • Average Low 2021–2026

    59 °F

  • Average 2021–2026

    66.1 °F

  • Average High 2021–2026

    73.8 °F
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