Founders Park Weather Forecast

    • 65
    • 84

    Becoming Sunny

    • 67
    • 89

    Mostly Sunny

    • 67
    • 87

    Mostly Cloudy

    • 67
    • 86

    Chance Rain Showers

    • 66
    • 85

    Chance Rain Showers

    • 63
    • 83

    Patchy Fog

Today 15 Sep Orange County Inland

Partly cloudy with patchy fog in the morning. Becoming mostly sunny. Highs 81 to 85 towards the coast to 89 farther inland. Light Winds becoming southwest 10 Mph in the afternoon.

Tonight 15 Sep Orange County Inland

Mostly clear in the evening. Becoming partly cloudy overnight with patchy fog. Lows 63 to 67. Light Winds.

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  • Temperature Real-Time

Founders Park Temperature Statistics

September Temperature

John Wayne-Orange County Airport (15.5 miles)

  • Lowest 12 September, 2025

    64.9 °F

  • Average September

    73.1 °F

  • Highest 3 September, 2025

    86 °F

Climate (2020–Present)

John Wayne-Orange County Airport (15.5 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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