Sycamore Park Weather Forecast

    • 62
    • 79

    Mostly Sunny

    • 61
    • 78

    Mostly Sunny

    • 61
    • 79

    Mostly Sunny

    • 62
    • 81

    Mostly Sunny

    • 63
    • 82

    Mostly Sunny

    • 62
    • 81

    Partly Sunny

Today 15 Sep Orange County Inland

Partly cloudy this morning. Becoming mostly sunny. Highs 78 to 82. Areas of Winds south 10 Mph.

Tonight 15 Sep Orange County Inland

Partly cloudy. Lows 56 to 65. Areas of Winds south 10 Mph in the evening becoming light.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Sycamore Park Temperature Statistics

September Temperature

John Wayne-Orange County Airport (11.2 miles)

  • Lowest 2 September, 2026

    65.6 °F

  • Average September

    78.3 °F

  • Highest 9 September, 2026

    102.7 °F

Climate (2021–2026)

John Wayne-Orange County Airport (11.2 miles)

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  • Average Low 2021–2026

    59.1 °F

  • Average 2021–2026

    66.2 °F

  • Average High 2021–2026

    73.8 °F
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