San Joaquin Reservoir Weather Forecast

    • 54
    • 73

    Decreasing Clouds

    • 54
    • 72

    Partly Sunny

    • 56
    • 70

    Partly Sunny

    • 57
    • 73

    Partly Sunny

    • 57
    • 74

    Patchy Fog

    • 56
    • 72

    Patchy Fog

Today 23 Feb Orange County Coastal

Partly cloudy. Highs 70 to 74 at the Beaches to 76 to 79 farther inland and near higher coastal Terrain. Light Winds becoming west 10 Mph this afternoon.

Tonight 23 Feb Orange County Coastal

Partly cloudy. Lows 51 to 54. Areas of Winds southwest to 10 Mph in the evening becoming light.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

San Joaquin Reservoir Temperature Statistics

February Temperature

John Wayne-Orange County Airport (4.3 miles)

  • Lowest 21 February, 2026

    43 °F

  • Average February

    61 °F

  • Highest 4 February, 2026

    89.7 °F

Climate (2021–Present)

John Wayne-Orange County Airport (4.3 miles)

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  • Average Low 2021–2026

    58.8 °F

  • Average 2021–2026

    65.7 °F

  • Average High 2021–2026

    73.5 °F
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