Fernbrook Weather Forecast

    • 49
    • 69

    Chance Rain Showers

    • 50
    • 66

    Slight Chance Rain Showers

    • 44
    • 65

    Partly Sunny

    • 44
    • 69

    Partly Sunny

    • 44
    • 70

    Partly Sunny

    • 47
    • 72

    Partly Sunny

Today 22 Jan San Diego County Inland Valleys

Mostly cloudy. Patchy fog this morning. A slight chance of Showers this Morning, then a chance of Showers this afternoon. Highs 64 to 69. Light Winds. Chance of measurable precipitation 30 percent.

Tonight 22 Jan San Diego County Inland Valleys

Partly cloudy with a chance of Showers. Lows 42 to 51 in wind Sheltered Areas to 49 to 52 in warmer Locations. Light Winds. Chance of measurable precipitation 30 percent.

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  • Temperature Real-Time

Fernbrook Temperature Statistics

January Temperature

Ramona, Ramona Airport (4.3 miles)

  • Lowest 8 January, 2026

    37 °F

  • Average January

    62.1 °F

  • Highest 17 January, 2026

    81 °F

Climate (2021–Present)

Ramona, Ramona Airport (4.3 miles)

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  • Average Low 2021–2026

    51.2 °F

  • Average 2021–2026

    64 °F

  • Average High 2021–2026

    76.5 °F
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