Clairemont Mesa West Weather Forecast

    • 70
    • 77

    Chance Thunderstorms

    • 68
    • 79

    Chance Thunderstorms

    • 67
    • 77

    Slight Chance Thunderstorms

    • 67
    • 78

    Patchy Fog

    • 67
    • 79

    Patchy Fog

    • 68
    • 80

    Patchy Fog

Today 17 Sep San Diego County Coastal Areas

Mostly cloudy. A slight chance of Showers and Thunderstorms this afternoon. Highs 75 to 80 near the coast to 79 to 83 inland. Areas of Winds northwest to 10 Mph becoming west with Gusts to 25 Mph this afternoon. Chance of measurable precipitation 20 percent.

Tonight 17 Sep San Diego County Coastal Areas

Mostly cloudy in the evening. Becoming partly cloudy. A chance of Showers and a slight chance of Thunderstorms. Lows around 70. Areas of Winds northwest 10 Mph in the evening becoming light. Chance of measurable precipitation 50 percent.

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Clairemont Mesa West Temperature Statistics

September Temperature

San Diego, Montgomery Field (2.5 miles)

  • Lowest 6 September, 2025

    64.9 °F

  • Average September

    71.6 °F

  • Highest 7 September, 2025

    88 °F

Climate (2020–Present)

San Diego, Montgomery Field (2.5 miles)

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  • Average Low 2020–2025

    55.8 °F

  • Average 2020–2025

    63.9 °F

  • Average High 2020–2025

    73.2 °F
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