Otay Mountain Weather Forecast

    • 48
    • 58

    Increasing Clouds

    • 48
    • 62

    Sunny

    • 50
    • 63

    Sunny

    • 51
    • 65

    Sunny

    • 54
    • 68

    Sunny

    • 59
    • 71

    Sunny

Today 3 Dec San Diego County Inland Valleys

Partly cloudy with a slight chance of Showers this Morning, then mostly sunny this afternoon. Highs around 67 in the western Valleys to 59 to 64 near the Foothills. Light Winds becoming west 10 Mph this afternoon. Chance of measurable precipitation 20 percent.

Tonight 3 Dec San Diego County Inland Valleys

Partly cloudy. Lows 38 to 44 in wind Sheltered Areas to 42 to 47 in warmer Locations. Areas of Winds east 10 to 20 Mph with Gusts to 30 Mph.

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Otay Mountain Temperature Statistics

December Temperature

San Diego, Brown Field Municipal Airport (8.7 miles)

  • Lowest 1 December, 2025

    48 °F

  • Average December

    55.9 °F

  • Highest 1 December, 2025

    66 °F

Climate (2020–Present)

San Diego, Brown Field Municipal Airport (8.7 miles)

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  • Average Low 2020–2025

    54 °F

  • Average 2020–2025

    63.4 °F

  • Average High 2020–2025

    73.8 °F
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