Black Mountain Ranch Weather Forecast

    • 51
    • 72

    Mostly Sunny

    • 54
    • 77

    Mostly Sunny

    • 51
    • 76

    Partly Sunny

    • 52
    • 71

    Partly Sunny

    • 52
    • 72

    Patchy Fog

    • 52
    • 70

    Mostly Cloudy

    • 53
    • 68

    Chance Rain Showers

Today 17 Dec San Diego County Coastal Areas

Mostly cloudy this morning. Becoming mostly sunny. Areas of fog this morning. Local visibility one quarter mile or less at Times this morning. Highs 65 to 70 near the coast to 71 to 74 inland. Light Winds becoming west 10 Mph this afternoon.

Tonight 17 Dec San Diego County Coastal Areas

Partly cloudy. Patchy fog. Local visibility one quarter mile or less at Times. Lows 49 to 53. Light Winds.

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Black Mountain Ranch Temperature Statistics

December Temperature

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

  • Lowest 5 December, 2025

    43 °F

  • Average December

    57.8 °F

  • Highest 10 December, 2025

    82 °F

Climate (2020–Present)

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

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  • Average Low 2020–2025

    52.7 °F

  • Average 2020–2025

    61.7 °F

  • Average High 2020–2025

    72.1 °F
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