Shelltown Weather Forecast

    • 68
    • 77

    Increasing Clouds

    • 67
    • 75

    Partly Sunny

    • 66
    • 74

    Partly Sunny

    • 66
    • 78

    Mostly Sunny

    • 67
    • 76

    Mostly Sunny

    • 69
    • 79

    Mostly Sunny

Today 13 Sep San Diego County Coastal Areas

Partly cloudy this morning. Becoming mostly sunny. Highs 76 to 80 near the coast to 81 to 85 inland. Light Winds becoming west 10 Mph this afternoon.

Tonight 13 Sep San Diego County Coastal Areas

Mostly clear this evening. Becoming mostly cloudy. Lows 62 to 67. Light Winds.

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Shelltown Temperature Statistics

September Temperature

San Diego, San Diego International-Lindbergh Field (5 miles)

  • Lowest 3 September, 2026

    63.6 °F

  • Average September

    78 °F

  • Highest 6 September, 2026

    95.6 °F

Climate (2021–2026)

San Diego, San Diego International-Lindbergh Field (5 miles)

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  • Average Low 2021–2026

    58.1 °F

  • Average 2021–2026

    64.2 °F

  • Average High 2021–2026

    71.1 °F
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