San Joaquin Marsh Weather Forecast

    • 58
    • 71

    Chance Rain Showers

    • 56
    • 71

    Partly Sunny

    • 52
    • 70

    Partly Sunny

    • 56
    • 80

    Partly Sunny

    • 56
    • 81

    Mostly Sunny

    • 57
    • 81

    Partly Sunny

Today 31 Mar Orange County Coastal

Cloudy. Highs around 68 at the Beaches to 69 to 72 farther inland and near higher coastal Terrain. Light Winds becoming south 10 Mph this afternoon.

Tonight 31 Mar Orange County Coastal

Cloudy with a chance of Showers in the Evening, then partly cloudy overnight. Lows around 56. Light Winds. Chance of measurable precipitation 40 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

San Joaquin Marsh Temperature Statistics

March Temperature

John Wayne-Orange County Airport (1.2 miles)

  • Lowest 6 March, 2026

    52 °F

  • Average March

    68.9 °F

  • Highest 17 March, 2026

    95.6 °F

Climate (2021–Present)

John Wayne-Orange County Airport (1.2 miles)

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  • Average Low 2021–2026

    59 °F

  • Average 2021–2026

    65.9 °F

  • Average High 2021–2026

    73.7 °F
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