Shelter Island Weather Forecast

    • 60
    • 71

    Decreasing Clouds

    • 60
    • 76

    Mostly Sunny

    • 62
    • 81

    Mostly Sunny

    • 59
    • 75

    Partly Sunny

    • 59
    • 72

    Partly Sunny

    • 60
    • 73

    Partly Sunny

Today 27 Oct San Diego County Coastal Areas

Partly cloudy with patchy fog in the morning. Becoming mostly sunny. Highs 68 to 73 near the coast to 74 to 78 inland. Light Winds becoming west 10 Mph in the afternoon.

Tonight 27 Oct San Diego County Coastal Areas

Mostly clear. Lows 55 to 59. Light Winds.

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Shelter Island Temperature Statistics

October Temperature

San Diego, North Island, Naval Air Station (1.9 miles)

  • Lowest 16 October, 2025

    54 °F

  • Average October

    65.7 °F

  • Highest 18 October, 2025

    82 °F

Climate (2020–Present)

San Diego, North Island, Naval Air Station (1.9 miles)

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  • Average Low 2020–2025

    57.2 °F

  • Average 2020–2025

    63 °F

  • Average High 2020–2025

    69.2 °F
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