Rossmoor Park Weather Forecast

    • 70
    • 88

    Increasing Clouds

    • 68
    • 83

    Partly Sunny

    • 66
    • 80

    Mostly Sunny

    • 71
    • 86

    Mostly Sunny

    • 70
    • 88

    Partly Sunny

    • 70
    • 88

    Partly Sunny

    • 70
    • 88

    Mostly Sunny

Today 26 Sep Orange County Inland

Mostly sunny. Highs around 90 towards the coast to 93 farther inland.

Tonight 26 Sep Orange County Inland

Mostly cloudy. Lows 66 to 70. Light Winds.

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  • Temperature Real-Time

Rossmoor Park Temperature Statistics

September Temperature

Los Alamitos Army Airfield (1.9 miles)

  • Lowest 5 September, 2026

    62.1 °F

  • Average September

    74.2 °F

  • Highest 8 September, 2026

    94.8 °F

Climate (2021–2026)

Los Alamitos Army Airfield (1.9 miles)

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  • Average Low 2021–2026

    55 °F

  • Average 2021–2026

    63.2 °F

  • Average High 2021–2026

    73.2 °F
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