El Cajon City Park Weather Forecast

    • 56
    • 78

    Sunny

    • 58
    • 82

    Mostly Sunny

    • 57
    • 84

    Mostly Sunny

    • 57
    • 82

    Partly Sunny

    • 57
    • 80

    Mostly Cloudy

    • 57
    • 76

    Mostly Cloudy

Today 24 Oct San Diego County Inland Valleys

Mostly sunny. Highs 75 to 78 in the western Valleys to 70 to 75 near the Foothills. Light Winds becoming west 10 Mph in the afternoon.

Tonight 24 Oct San Diego County Inland Valleys

Mostly clear. Lows 52 to 57. Areas of Winds northeast to 10 Mph in the evening becoming light.

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El Cajon City Park Temperature Statistics

October Temperature

Gillespie Field Airport (1.9 miles)

  • Lowest 14 October, 2026

    50 °F

  • Average October

    72 °F

  • Highest 3 October, 2026

    105.8 °F

Climate (2021–2026)

Gillespie Field Airport (1.9 miles)

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  • Average Low 2021–2026

    53.7 °F

  • Average 2021–2026

    60.8 °F

  • Average High 2021–2026

    76.5 °F
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