El Cajon City Park Weather Forecast

    • 59
    • 79

    Becoming Sunny

    • 61
    • 77

    Partly Sunny

    • 57
    • 73

    Mostly Cloudy

    • 58
    • 75

    Partly Sunny

    • 57
    • 75

    Partly Sunny

    • 56
    • 76

    Partly Sunny

Today 26 Jun San Diego County Inland Valleys

Partly cloudy with patchy fog this morning. Becoming sunny. Highs 74 to 78 in the western Valleys to 78 to 83 near the Foothills. Areas of Winds southwest to 10 Mph becoming west with Gusts to 25 Mph this afternoon.

Tonight 26 Jun San Diego County Inland Valleys

Partly cloudy. Patchy drizzle overnight. Patchy fog overnight. Lows 52 to 57. Areas of Winds southwest to 10 Mph this evening becoming light.

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El Cajon City Park Temperature Statistics

June Temperature

Gillespie Field Airport (1.9 miles)

  • Lowest 9 June, 2026

    55.4 °F

  • Average June

    66.7 °F

  • Highest 12 June, 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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