Otay County Open Space Preserve Weather Forecast

    • 66
    • 84

    Mostly Sunny

    • 66
    • 82

    Increasing Clouds

    • 64
    • 80

    Partly Sunny

    • 63
    • 78

    Partly Sunny

    • 62
    • 78

    Partly Sunny

    • 62
    • 76

    Partly Sunny

    • 62
    • 75

    Partly Sunny

Today 8 Aug San Diego County Inland Valleys

Patchy dense fog this morning. Mostly sunny. Highs 85 to 90 in the western Valleys to 93 to 98 near the Foothills. Areas of Winds west to 10 Mph. Becoming 10 to 15 Mph with Gusts to 25 Mph this afternoon.

Tonight 8 Aug San Diego County Inland Valleys

Mostly clear. Patchy dense fog overnight. Lows 64 to 70. Areas of Winds west to 10 Mph this evening becoming light.

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Otay County Open Space Preserve Temperature Statistics

August Temperature

San Diego, Brown Field Municipal Airport (6.8 miles)

  • Lowest 4 August, 2026

    64.7 °F

  • Average August

    74.1 °F

  • Highest 2 August, 2026

    84.7 °F

Climate (2021–2026)

San Diego, Brown Field Municipal Airport (6.8 miles)

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  • Average Low 2021–2026

    54.3 °F

  • Average 2021–2026

    63.9 °F

  • Average High 2021–2026

    74.3 °F
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