San Joaquin Reservoir Weather Forecast

    • 51
    • 69

    Mostly Sunny

    • 54
    • 73

    Decreasing Clouds

    • 55
    • 71

    Partly Sunny

    • 56
    • 72

    Partly Sunny

    • 57
    • 74

    Partly Sunny

    • 57
    • 74

    Patchy Fog

    • 56
    • 72

    Patchy Fog

Today 22 Feb Orange County Coastal

Mostly sunny. Highs 67 to 71 at the Beaches to 71 to 74 farther inland and near higher coastal Terrain. Areas of Winds northwest to 10 Mph becoming west with Gusts to 25 Mph this afternoon.

Tonight 22 Feb Orange County Coastal

Mostly clear. Lows 48 to 52. Areas of Winds west to 10 Mph this 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 20 February, 2026

    44.1 °F

  • Average February

    61.2 °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

    65.8 °F

  • Average High 2021–2026

    73.5 °F
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