El Monte County Park Weather Forecast

    • 63
    • 89

    Mostly Sunny

    • 64
    • 90

    Mostly Sunny

    • 66
    • 91

    Mostly Sunny

    • 68
    • 93

    Mostly Sunny

    • 67
    • 94

    Mostly Sunny

    • 66
    • 94

    Sunny

Today 16 Aug San Diego County Inland Valleys

Partly cloudy with patchy fog this morning. Becoming mostly sunny. Highs 82 to 87 in the western Valleys to 87 to 92 near the Foothills. Areas of Winds west to 10 Mph. Becoming 10 to 15 Mph with Gusts to 25 Mph this afternoon.

Tonight 16 Aug San Diego County Inland Valleys

Mostly clear this evening. Becoming partly cloudy. Patchy fog overnight. Lows 61 to 66. Areas of Winds west to 10 Mph this evening becoming light.

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El Monte County Park Temperature Statistics

August Temperature

Gillespie Field Airport (8.1 miles)

  • Lowest 3 August, 2026

    66.2 °F

  • Average August

    74 °F

  • Highest 2 August, 2026

    93.2 °F

Climate (2021–2026)

Gillespie Field Airport (8.1 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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