El Cajon Mountain Weather Forecast

    • 48
    • 64

    Chance Rain Showers

    • 44
    • 61

    Partly Sunny

    • 48
    • 67

    Mostly Sunny

    • 49
    • 65

    Partly Sunny

    • 48
    • 60

    Mostly Cloudy

    • 47
    • 58

    Mostly Cloudy

Today 21 Apr San Diego County Inland Valleys

Mostly sunny. Highs 71 to 74 in the western Valleys to 67 to 72 near the Foothills. Areas of Winds southwest to 10 Mph becoming west with Gusts to 25 Mph this afternoon.

Tonight 21 Apr San Diego County Inland Valleys

Cloudy with a chance of Showers in the Evening, then partly cloudy overnight. Lows 47 to 52. 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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El Cajon Mountain Temperature Statistics

April Temperature

Ramona, Ramona Airport (9.9 miles)

  • Lowest 18 April, 2026

    43 °F

  • Average April

    63 °F

  • Highest 4 April, 2026

    86 °F

Climate (2021–Present)

Ramona, Ramona Airport (9.9 miles)

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  • Average Low 2021–2026

    51.6 °F

  • Average 2021–2026

    64.6 °F

  • Average High 2021–2026

    76.9 °F
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