El Cajon Weather Forecast

    • 64
    • 88

    Increasing Clouds

    • 65
    • 86

    Patchy Fog

    • 65
    • 90

    Mostly Sunny

    • 64
    • 87

    Mostly Sunny

    • 63
    • 85

    Partly Sunny

    • 64
    • 84

    Partly Sunny

Today 6 Jul San Diego County Inland Valleys

Partly cloudy with patchy fog this morning. Becoming sunny. Highs 80 to 85 in the western Valleys to 88 to 93 near the Foothills. Areas of Winds west to 10 Mph. Becoming 10 to 15 Mph with Gusts to 25 Mph this afternoon.

Tonight 6 Jul San Diego County Inland Valleys

Mostly clear in the evening. Becoming partly cloudy overnight with patchy fog. Lows 59 to 63. Areas of Winds west to 10 Mph in the evening becoming light.

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El Cajon Temperature Statistics

July Temperature

Gillespie Field Airport (1.9 miles)

  • Lowest 2 July, 2026

    60.8 °F

  • Average July

    66.5 °F

  • Highest 3 July, 2026

    86 °F

Climate (2021–2026)

Gillespie Field Airport (1.9 miles)

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  • Average Low 2021–2026

    53.5 °F

  • Average 2021–2026

    60.5 °F

  • Average High 2021–2026

    76.2 °F
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