Shelltown Weather Forecast

    • 53
    • 74

    Partly Sunny

    • 52
    • 70

    Mostly Cloudy

    • 52
    • 71

    Partly Sunny

    • 52
    • 70

    Mostly Cloudy

    • 53
    • 69

    Mostly Cloudy

    • 54
    • 66

    Mostly Cloudy

Today 18 Jan San Diego County Coastal Areas

Partly cloudy. Highs 71 to 75 near the coast to 78 inland. Light Winds becoming west 10 Mph in the afternoon.

Tonight 18 Jan San Diego County Coastal Areas

Partly cloudy. Patchy fog overnight. Lows 49 to 53. Light Winds.

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Shelltown Temperature Statistics

January Temperature

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

  • Lowest 10 January, 2026

    39.9 °F

  • Average January

    58.9 °F

  • Highest 15 January, 2026

    78.1 °F

Climate (2021–Present)

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

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  • Average Low 2021–2026

    57.9 °F

  • Average 2021–2026

    63.8 °F

  • Average High 2021–2026

    70.7 °F
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