Ross Lake Weather Forecast

    • 58
    • 77

    Increasing Clouds

    • 59
    • 82

    Partly Sunny

    • 60
    • 84

    Mostly Sunny

    • 62
    • 85

    Mostly Sunny

    • 65
    • 86

    Mostly Sunny

    • 68
    • 91

    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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Ross Lake Temperature Statistics

August Temperature

Fallbrook Community Airpark (6.2 miles)

  • Lowest 2 August, 2025

    57.2 °F

  • Average August

    69.1 °F

  • Highest 7 August, 2025

    96.8 °F

Climate (2020–Present)

Fallbrook Community Airpark (6.2 miles)

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  • Average Low 2020–2025

    53.5 °F

  • Average 2020–2025

    61.9 °F

  • Average High 2020–2025

    74.2 °F
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