Rattlesnake Reservoir Weather Forecast

    • 64
    • 81

    Partly Sunny

    • 63
    • 81

    Partly Sunny

    • 62
    • 80

    Partly Sunny

    • 61
    • 77

    Partly Sunny

    • 59
    • 76

    Partly Sunny

    • 58
    • 76

    Partly Sunny

Today 14 Jun Orange County Inland

Partly cloudy with patchy fog in the morning. Becoming sunny. Highs 80 to 85. Light Winds becoming southwest 10 Mph in the afternoon.

Tonight 14 Jun Orange County Inland

Mostly clear in the evening. Becoming partly cloudy overnight with patchy fog. Lows 61 to 66. Areas of Winds west 10 Mph in the evening becoming light.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Rattlesnake Reservoir Temperature Statistics

June Temperature

John Wayne-Orange County Airport (8.1 miles)

  • Lowest 2 June, 2026

    62.7 °F

  • Average June

    68.5 °F

  • Highest 11 June, 2026

    75.9 °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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