Fernbrook Weather Forecast

    • 51
    • 79

    Mostly Sunny

    • 50
    • 79

    Mostly Sunny

    • 51
    • 76

    Mostly Cloudy

    • 50
    • 69

    Partly Sunny

    • 49
    • 67

    Partly Sunny

    • 49
    • 70

    Mostly Cloudy

Today 19 Jan San Diego County Inland Valleys

Mostly sunny. Highs 74 to 79. Light Winds becoming west 10 Mph this afternoon.

Tonight 19 Jan San Diego County Inland Valleys

Mostly clear. Lows 43 to 52 in wind Sheltered Areas to 48 to 55 in warmer Locations. Areas of Winds east to 10 Mph.

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Fernbrook Temperature Statistics

January Temperature

Ramona, Ramona Airport (4.3 miles)

  • Lowest 8 January, 2026

    37 °F

  • Average January

    60.8 °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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