El Cajon Mountain Weather Forecast

    • 35
    • 52

    Mostly Sunny

    • 38
    • 58

    Sunny

    • 38
    • 59

    Mostly Sunny

    • 41
    • 61

    Mostly Sunny

    • 40
    • 56

    Partly Sunny

    • 44
    • 64

    Mostly Sunny

    • 44
    • 64

    Mostly Sunny

Today 17 Jan San Diego County Inland Valleys

Partly cloudy with patchy fog this morning. Becoming mostly sunny. Highs 57 to 61. Areas of Winds east to 10 Mph becoming west 10 Mph this afternoon.

Tonight 17 Jan San Diego County Inland Valleys

Partly cloudy. Patchy fog overnight. Colder. Lows 28 to 38 in wind Sheltered Areas to 34 to 41 in warmer Locations. Light Winds.

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El Cajon Mountain Temperature Statistics

January Temperature

Ramona, Ramona Airport (9.9 miles)

  • Lowest 4 January, 2025

    35.1 °F

  • Average January

    60.9 °F

  • Highest 2 January, 2025

    84 °F

Climate (2020–Present)

Ramona, Ramona Airport (9.9 miles)

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  • Average Low 2020–2025

    51 °F

  • Average 2020–2025

    63.8 °F

  • Average High 2020–2025

    76.5 °F
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