El Cajon City Park Weather Forecast

    • 65
    • 90

    Becoming Sunny

    • 68
    • 94

    Partly Sunny

    • 68
    • 96

    Mostly Sunny

    • 66
    • 93

    Mostly Sunny

    • 66
    • 90

    Mostly Sunny

    • 66
    • 90

    Mostly Sunny

Today 30 Jul San Diego County Inland Valleys

Partly cloudy in the morning. Becoming sunny. Highs 85 to 89 in the western Valleys to 92 to 97 near the Foothills. Light Winds becoming west 10 Mph in the afternoon.

Tonight 30 Jul San Diego County Inland Valleys

Mostly clear in the evening. Becoming partly cloudy. Lows 61 to 65. Areas of Winds west to 10 Mph in the 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

    72 °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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