Fernbrook Weather Forecast

    • 48
    • 65

    Rain Showers Likely

    • 47
    • 64

    Chance Rain Showers

    • 46
    • 72

    Mostly Sunny

    • 49
    • 74

    Partly Sunny

    • 49
    • 72

    Partly Sunny

    • 49
    • 75

    Mostly Sunny

Today 12 Apr San Diego County Inland Valleys

Mostly cloudy with a chance of Showers. A slight chance of Thunderstorms this afternoon. Highs 65 to 68 in the western Valleys to 58 to 63 near the Foothills. Areas of Winds south 10 to 15 Mph. Gusts to 25 Mph. Becoming 30 Mph this afternoon. Chance of measurable precipitation 50 percent.

Tonight 12 Apr San Diego County Inland Valleys

Mostly cloudy with a chance of Showers. Lows 41 to 50 in wind Sheltered Areas to 46 to 51 in warmer Locations. Areas of Winds west 10 to 15 Mph. Gusts to 25 Mph in the evening. Chance of measurable precipitation 50 percent.

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Fernbrook Temperature Statistics

April Temperature

Ramona, Ramona Airport (4.3 miles)

  • Lowest 3 April, 2026

    44.1 °F
  • Average April

    65.7 °F
  • Highest 4 April, 2026

    86 °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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