Rancho Bernardo Weather Forecast

    • 49
    • 73

    Mostly Sunny

    • 50
    • 76

    Mostly Sunny

    • 51
    • 75

    Mostly Sunny

    • 54
    • 79

    Mostly Sunny

    • 51
    • 78

    Partly Sunny

    • 50
    • 71

    Partly Sunny

    • 51
    • 72

    Partly Sunny

Today 15 Dec San Diego County Inland Valleys

Patchy dense fog this morning. Mostly sunny. Local visibility one quarter mile or less at Times this morning. Highs 71 to 75 in the western Valleys to 75 to 80 near the Foothills. Light Winds becoming west 10 Mph this afternoon.

Tonight 15 Dec San Diego County Inland Valleys

Mostly clear. Lows 47 to 52 in wind Sheltered Areas to 49 to 57 in warmer Locations. Light Winds.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Rancho Bernardo Temperature Statistics

December Temperature

Ramona, Ramona Airport (8.7 miles)

  • Lowest 1 December, 2025

    44.1 °F

  • Average December

    66.5 °F

  • Highest 10 December, 2025

    87.1 °F

Climate (2020–Present)

Ramona, Ramona Airport (8.7 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2020–2025

    51.1 °F

  • Average 2020–2025

    64 °F

  • Average High 2020–2025

    76.5 °F
Get WillyWeather+ to remove ads