San Joaquin Reservoir Weather Forecast

    • 53
    • 66

    Increasing Clouds

    • 51
    • 64

    Partly Sunny

    • 54
    • 69

    Mostly Sunny

    • 55
    • 74

    Mostly Sunny

    • 54
    • 74

    Patchy Fog

    • 53
    • 66

    Patchy Fog

Today 23 Nov Orange County Coastal

Mostly sunny. Highs 65 to 69. Areas of Winds south 10 Mph.

Tonight 23 Nov Orange County Coastal

Mostly clear in the evening. Becoming mostly cloudy overnight with patchy fog. Lows 51 to 54. Light Winds becoming southeast 10 Mph overnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

San Joaquin Reservoir Temperature Statistics

November Temperature

John Wayne-Orange County Airport (4.3 miles)

  • Lowest 19 November, 2025

    48.9 °F

  • Average November

    62.5 °F

  • Highest 10 November, 2025

    78.1 °F

Climate (2020–Present)

John Wayne-Orange County Airport (4.3 miles)

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  • Average Low 2020–2025

    58.7 °F

  • Average 2020–2025

    65.6 °F

  • Average High 2020–2025

    73.4 °F
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