Cerro De Las Posas Park Weather Forecast

    • 64
    • 85

    Increasing Clouds

    • 60
    • 83

    Patchy Fog

    • 62
    • 76

    Partly Sunny

    • 59
    • 73

    Mostly Cloudy

    • 59
    • 73

    Partly Sunny

    • 59
    • 75

    Patchy Fog

    • 60
    • 77

    Patchy Fog

Today 7 Sep San Diego County Inland Valleys

Mostly sunny. Highs 88 to 93. Areas of Winds west to 10 Mph.

Tonight 7 Sep San Diego County Inland Valleys

Mostly clear. Lows 62 to 66. Light Winds.

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Cerro De Las Posas Park Temperature Statistics

September Temperature

Carlsbad, McClellan-Palomar Airport (5 miles)

  • Lowest 5 September, 2025

    66 °F

  • Average September

    71.1 °F

  • Highest 1 September, 2025

    78.1 °F

Climate (2020–Present)

Carlsbad, McClellan-Palomar Airport (5 miles)

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  • Average Low 2020–2025

    56.5 °F

  • Average 2020–2025

    62.5 °F

  • Average High 2020–2025

    68.9 °F
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