El Cajon City Park Weather Forecast

    • 68
    • 90

    Decreasing Clouds

    • 67
    • 91

    Becoming Sunny

    • 65
    • 90

    Partly Sunny

    • 66
    • 89

    Mostly Sunny

    • 67
    • 90

    Mostly Sunny

    • 68
    • 95

    Mostly Sunny

    • 69
    • 98

    Hot

Today 26 Jul San Diego County Inland Valleys

Partly cloudy. A slight chance of Showers this morning. Highs 85 to 90 in the western Valleys to 94 to 99 near the Foothills. Areas of Winds west to 10 Mph. Chance of measurable precipitation 20 percent.

Tonight 26 Jul San Diego County Inland Valleys

Partly cloudy. Lows 63 to 68. Areas of Winds west to 10 Mph this evening becoming light.

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El Cajon City Park Temperature Statistics

July Temperature

Gillespie Field Airport (1.9 miles)

  • Lowest 2 July, 2026

    60.8 °F

  • Average July

    71.6 °F

  • Highest 15 July, 2026

    93.2 °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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