Washington Square Weather Forecast

    • 64
    • 79

    Increasing Clouds

    • 65
    • 83

    Partly Sunny

    • 66
    • 86

    Mostly Sunny

    • 68
    • 88

    Mostly Sunny

    • 69
    • 88

    Patchy Fog

    • 69
    • 87

    Partly Sunny

    • 68
    • 85

    Mostly Sunny

Today 13 Sep Orange County Inland

Mostly cloudy with patchy fog this morning. Becoming sunny. Highs 77 to 81. Light Winds becoming southwest 10 Mph this afternoon.

Tonight 13 Sep Orange County Inland

Mostly clear this evening. Becoming mostly cloudy. Patchy fog overnight. Lows 58 to 64. Light Winds.

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Washington Square Temperature Statistics

September Temperature

John Wayne-Orange County Airport (5 miles)

  • Lowest 11 September, 2025

    66 °F

  • Average September

    73.4 °F

  • Highest 3 September, 2025

    86 °F

Climate (2020–Present)

John Wayne-Orange County Airport (5 miles)

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  • Average Low 2020–2025

    58.7 °F

  • Average 2020–2025

    65.7 °F

  • Average High 2020–2025

    73.6 °F
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