Casa De Oro-Mount Helix Weather Forecast

    • 50
    • 70

    Partly Sunny

    • 50
    • 70

    Mostly Sunny

    • 56
    • 78

    Sunny

    • 58
    • 95

    Sunny

    • 58
    • 93

    Mostly Sunny

    • 55
    • 84

    Mostly Sunny

Today 9 Mar San Diego County Inland Valleys

Partly cloudy. A slight chance of Showers this afternoon. Highs around 71 in the western Valleys to 65 to 70 near the Foothills. Light Winds becoming west 10 to 15 Mph this afternoon. Chance of measurable precipitation 20 percent.

Tonight 9 Mar San Diego County Inland Valleys

Partly cloudy. Patchy fog overnight. Lows 42 to 51 in wind Sheltered Areas to 48 to 53 in warmer Locations. Areas of Winds west to 10 Mph in the evening becoming light.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Casa De Oro-Mount Helix Temperature Statistics

March Temperature

Gillespie Field Airport (4.3 miles)

  • Lowest 6 March, 2026

    41 °F

  • Average March

    56.9 °F

  • Highest 1 March, 2026

    87.8 °F

Climate (2021–Present)

Gillespie Field Airport (4.3 miles)

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  • Average Low 2021–2026

    53.3 °F

  • Average 2021–2026

    60.3 °F

  • Average High 2021–2026

    76 °F
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