Casa De Oro-Mount Helix Weather Forecast

    • 67
    • 87

    Increasing Clouds

    • 67
    • 87

    Partly Sunny

    • 66
    • 85

    Partly Sunny

    • 65
    • 84

    Partly Sunny

    • 65
    • 83

    Mostly Sunny

    • 64
    • 81

    Partly Sunny

Today 8 Aug San Diego County Inland Valleys

Patchy fog in the morning. Mostly sunny. Highs 86 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 in the afternoon.

Tonight 8 Aug San Diego County Inland Valleys

Mostly clear. Lows 64 to 70. Areas of Winds west to 10 Mph in the evening becoming light.

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  • Temperature Real-Time

Casa De Oro-Mount Helix Temperature Statistics

August Temperature

Gillespie Field Airport (4.3 miles)

  • Lowest 3 August, 2026

    66.2 °F

  • Average August

    72.8 °F

  • Highest 2 August, 2026

    93.2 °F

Climate (2021–2026)

Gillespie Field Airport (4.3 miles)

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  • Average Low 2021–2026

    53.5 °F

  • Average 2021–2026

    60.5 °F

  • Average High 2021–2026

    76.2 °F
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