San Joaquin Reservoir Weather Forecast

    • 59
    • 70

    Mostly Cloudy

    • 58
    • 70

    Increasing Clouds

    • 60
    • 70

    Mostly Cloudy

    • 62
    • 72

    Partly Sunny

    • 62
    • 73

    Partly Sunny

    • 62
    • 73

    Partly Sunny

    • 62
    • 74

    Partly Sunny

Today 6 Jun Orange County Coastal

Cloudy this morning. Becoming mostly cloudy. Highs around 69 at the Beaches to 70 to 74 farther inland and near higher coastal Terrain. Areas of Winds south 10 Mph.

Tonight 6 Jun Orange County Coastal

Mostly cloudy. Lows 56 to 60. Areas of Winds south 10 Mph this evening becoming light.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

San Joaquin Reservoir Temperature Statistics

June Temperature

John Wayne-Orange County Airport (4.3 miles)

  • Lowest 2 June, 2026

    62.7 °F

  • Average June

    67.8 °F

  • Highest 1 June, 2026

    73.7 °F

Climate (2021–Present)

John Wayne-Orange County Airport (4.3 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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