Black Mountain Ranch Weather Forecast

    • 44
    • 71

    Becoming Sunny

    • 47
    • 68

    Mostly Sunny

    • 48
    • 69

    Mostly Sunny

    • 51
    • 72

    Mostly Sunny

    • 53
    • 76

    Mostly Sunny

    • 53
    • 77

    Mostly Sunny

Today 4 Dec San Diego County Coastal Areas

Mostly sunny. Highs 69 to 72. Areas of Winds east 10 Mph becoming northwest in the afternoon.

Tonight 4 Dec San Diego County Coastal Areas

Mostly clear. Lows 39 to 47. Areas of Winds east 10 to 15 Mph. Gusts to 25 Mph in the evening.

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  • Temperature Real-Time

Black Mountain Ranch Temperature Statistics

December Temperature

San Diego, Miramar MCAS/Mitscher Field Airport (8.7 miles)

  • Lowest 1 December, 2025

    46 °F

  • Average December

    55.3 °F

  • Highest 1 December, 2025

    66 °F

Climate (2020–Present)

San Diego, Miramar MCAS/Mitscher Field Airport (8.7 miles)

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  • Average Low 2020–2025

    52.6 °F

  • Average 2020–2025

    61.7 °F

  • Average High 2020–2025

    72.1 °F
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