El Cajon City Park Weather Forecast

    • 46
    • 77

    Mostly Sunny

    • 49
    • 78

    Sunny

    • 51
    • 82

    Mostly Sunny

    • 51
    • 84

    Mostly Sunny

    • 52
    • 81

    Mostly Sunny

    • 51
    • 82

    Partly Sunny

    • 51
    • 82

    Partly Sunny

Today 12 Jan San Diego County Inland Valleys

Mostly sunny. Areas of blowing dust. Highs 74 to 77 in the western Valleys to 67 to 72 near the Foothills. Areas of Winds east 20 to 30 Mph. Gusts to 50 Mph. Becoming 45 Mph this afternoon.

Tonight 12 Jan San Diego County Inland Valleys

Mostly clear. Lows 46 to 53. Areas of Winds east 10 to 15 Mph. Gusts to 30 Mph. Becoming 25 Mph overnight.

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El Cajon City Park Temperature Statistics

January Temperature

Gillespie Field Airport (1.9 miles)

  • Lowest 10 January, 2026

    35.6 °F

  • Average January

    55.2 °F

  • Highest 2 January, 2026

    71.6 °F

Climate (2021–Present)

Gillespie Field Airport (1.9 miles)

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  • Average Low 2021–2026

    53.2 °F

  • Average 2021–2026

    60.3 °F

  • Average High 2021–2026

    75.8 °F
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