Rossmoor Park Weather Forecast

    • 67
    • 83

    Becoming Sunny

    • 68
    • 89

    Mostly Sunny

    • 69
    • 85

    Chance Thunderstorms

    • 69
    • 85

    Chance Rain Showers

    • 69
    • 84

    Slight Chance Thunderstorms

    • 68
    • 83

    Partly Sunny

Today 15 Sep Orange County Inland

Partly cloudy with patchy fog this morning. Becoming sunny. Highs 80 to 84 towards the coast to 90 farther inland. Light Winds becoming southwest 10 Mph this afternoon.

Tonight 15 Sep Orange County Inland

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

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Rossmoor Park Temperature Statistics

September Temperature

Los Alamitos Army Airfield (1.9 miles)

  • Lowest 11 September, 2025

    61.7 °F

  • Average September

    71.8 °F

  • Highest 3 September, 2025

    86.5 °F

Climate (2020–Present)

Los Alamitos Army Airfield (1.9 miles)

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  • Average Low 2020–2025

    54.3 °F

  • Average 2020–2025

    62.7 °F

  • Average High 2020–2025

    73.2 °F
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