El Cajon City Park Weather Forecast

    • 57
    • 77

    Partly Sunny

    • 60
    • 83

    Partly Sunny

    • 57
    • 80

    Partly Sunny

    • 57
    • 80

    Partly Sunny

    • 57
    • 79

    Mostly Sunny

    • 59
    • 80

    Mostly Sunny

Today 30 May San Diego County Inland Valleys

Sunny, warmer. Highs 74 to 79. Areas of Winds west to 10 Mph.

Tonight 30 May San Diego County Inland Valleys

Clear in the evening. Becoming partly cloudy. Lows 53 to 56. Areas of Winds west to 10 Mph in the evening becoming light.

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  • Temperature Real-Time

El Cajon City Park Temperature Statistics

May Temperature

Gillespie Field Airport (1.9 miles)

  • Lowest 6 May, 2026

    51.8 °F

  • Average May

    62.8 °F

  • Highest 11 May, 2026

    86 °F

Climate (2021–Present)

Gillespie Field Airport (1.9 miles)

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  • Average Low 2021–2026

    53.4 °F

  • Average 2021–2026

    60.5 °F

  • Average High 2021–2026

    76.2 °F
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