Otay Ranch Weather Forecast

    • 67
    • 86

    Partly Sunny

    • 67
    • 84

    Partly Sunny

    • 66
    • 77

    Chance Rain Showers

    • 65
    • 77

    Chance Rain Showers

    • 65
    • 79

    Slight Chance Thunderstorms

    • 67
    • 82

    Mostly Sunny

Today 16 Sep San Diego County Inland Valleys

Mostly sunny. Highs 91 to 96. Areas of Winds west to 10 Mph. Becoming 10 to 15 Mph with Gusts to 25 Mph this afternoon.

Tonight 16 Sep San Diego County Inland Valleys

Partly cloudy this evening. Becoming mostly cloudy. Lows 65 to 69. Areas of Winds west to 10 Mph this evening becoming light.

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  • Temperature Real-Time

Otay Ranch Temperature Statistics

September Temperature

San Diego, Brown Field Municipal Airport (7.5 miles)

  • Lowest 12 September, 2025

    57 °F

  • Average September

    70.9 °F

  • Highest 7 September, 2025

    88 °F

Climate (2020–Present)

San Diego, Brown Field Municipal Airport (7.5 miles)

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  • Average Low 2020–2025

    54 °F

  • Average 2020–2025

    63.4 °F

  • Average High 2020–2025

    73.9 °F
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