Rattlesnake Reservoir Weather Forecast

    • 47
    • 64

    Increasing Clouds

    • 49
    • 68

    Partly Sunny

    • 50
    • 70

    Partly Sunny

    • 49
    • 72

    Mostly Cloudy

    • 50
    • 64

    Chance Rain Showers

    • 48
    • 60

    Chance Rain Showers

Today 31 Jan Orange County Inland

Partly cloudy. Highs around 64. Light Winds becoming west 10 Mph in the afternoon.

Tonight 31 Jan Orange County Inland

Partly cloudy. Lows 44 to 47. Light Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Rattlesnake Reservoir Temperature Statistics

January Temperature

John Wayne-Orange County Airport (8.1 miles)

  • Lowest 16 January, 2025

    44.7 °F

  • Average January

    59.2 °F

  • Highest 22 January, 2025

    86.6 °F

Climate (2020–Present)

John Wayne-Orange County Airport (8.1 miles)

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  • Average Low 2020–2025

    58.9 °F

  • Average 2020–2025

    65.8 °F

  • Average High 2020–2025

    73.8 °F
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