Rattlesnake Reservoir Weather Forecast

    • 51
    • 71

    Mostly Sunny

    • 53
    • 73

    Partly Sunny

    • 52
    • 72

    Breezy

    • 54
    • 79

    Mostly Sunny

    • 55
    • 81

    Partly Sunny

    • 53
    • 79

    Mostly Sunny

    • 53
    • 74

    Mostly Sunny

Today 14 Apr Orange County Inland

Partly cloudy this morning. Becoming sunny. Highs 70 to 73. Light Winds becoming southwest 10 Mph this afternoon.

Tonight 14 Apr Orange County Inland

Mostly clear. Lows 48 to 53. Areas of Winds west to 10 Mph with Gusts to 25 Mph this evening becoming light.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Rattlesnake Reservoir Temperature Statistics

April Temperature

John Wayne-Orange County Airport (8.1 miles)

  • Lowest 4 April, 2026

    55.7 °F

  • Average April

    67.7 °F

  • Highest 4 April, 2026

    86.6 °F

Climate (2021–Present)

John Wayne-Orange County Airport (8.1 miles)

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  • Average Low 2021–2026

    59 °F

  • Average 2021–2026

    66 °F

  • Average High 2021–2026

    73.7 °F
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