Fernbrook Weather Forecast

    • 56
    • 91

    Becoming Sunny

    • 54
    • 83

    Mostly Cloudy

    • 54
    • 78

    Mostly Cloudy

    • 52
    • 74

    Mostly Cloudy

    • 50
    • 73

    Mostly Cloudy

    • 50
    • 77

    Mostly Sunny

Today 29 Mar San Diego County Inland Valleys

Partly cloudy with patchy fog this morning. Becoming mostly sunny. Local visibility one quarter mile or less at Times this morning. Highs 86 to 91. Areas of Winds west to 10 Mph becoming 10 to 15 Mph this afternoon.

Tonight 29 Mar San Diego County Inland Valleys

Mostly clear. Cooler. Lows 49 to 57 in wind Sheltered Areas to 55 to 60 in warmer Locations. Areas of Winds west to 10 Mph in the evening becoming light.

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Fernbrook Temperature Statistics

March Temperature

Ramona, Ramona Airport (4.3 miles)

  • Lowest 3 March, 2026

    37.9 °F

  • Average March

    70.8 °F

  • Highest 20 March, 2026

    97 °F

Climate (2021–Present)

Ramona, Ramona Airport (4.3 miles)

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  • Average Low 2021–2026

    51.6 °F

  • Average 2021–2026

    64.5 °F

  • Average High 2021–2026

    76.9 °F
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