Kearny Mesa Weather Forecast

    • 61
    • 75

    Becoming Sunny

    • 64
    • 77

    Partly Sunny

    • 64
    • 77

    Mostly Cloudy

    • 63
    • 76

    Partly Sunny

    • 64
    • 77

    Partly Sunny

    • 65
    • 79

    Partly Sunny

Today 18 Sep San Diego County Coastal Areas

Partly cloudy in the morning. Becoming mostly sunny. Highs 73 to 77. Light Winds becoming west 10 to 15 Mph in the afternoon.

Tonight 18 Sep San Diego County Coastal Areas

Mostly clear in the evening. Becoming partly cloudy. Lows 58 to 63. Areas of Winds northwest to 10 Mph in the evening becoming light.

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Kearny Mesa Temperature Statistics

September Temperature

San Diego, Montgomery Field (0.6 miles)

  • Lowest 3 September, 2026

    59.6 °F

  • Average September

    78 °F

  • Highest 9 September, 2026

    103.6 °F

Climate (2021–2026)

San Diego, Montgomery Field (0.6 miles)

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  • Average Low 2021–2026

    56.3 °F

  • Average 2021–2026

    64.6 °F

  • Average High 2021–2026

    73.5 °F
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