Flinn Springs County Park Weather Forecast

    • 58
    • 80

    Increasing Clouds

    • 58
    • 83

    Mostly Sunny

    • 59
    • 85

    Mostly Sunny

    • 62
    • 86

    Mostly Sunny

    • 66
    • 88

    Mostly Sunny

    • 68
    • 92

    Mostly Sunny

Today 16 Aug San Diego County Inland Valleys

Partly cloudy with patchy fog this morning. Becoming mostly sunny. Highs 75 to 79 in the western Valleys to 79 to 84 near the Foothills. Light Winds becoming southwest 10 Mph this afternoon.

Tonight 16 Aug San Diego County Inland Valleys

Partly cloudy. Patchy fog overnight. Lows 54 to 60. Areas of Winds west to 10 Mph in the evening becoming light.

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Flinn Springs County Park Temperature Statistics

August Temperature

Gillespie Field Airport (6.2 miles)

  • Lowest 3 August, 2025

    60.8 °F

  • Average August

    69.3 °F

  • Highest 7 August, 2025

    98.6 °F

Climate (2020–Present)

Gillespie Field Airport (6.2 miles)

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  • Average Low 2020–2025

    52.9 °F

  • Average 2020–2025

    60.2 °F

  • Average High 2020–2025

    76 °F
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