Barrett Junction Weather Forecast

    • 65
    • 91

    Slight Chance Thunderstorms

    • 66
    • 91

    Slight Chance Thunderstorms

    • 67
    • 88

    Slight Chance Thunderstorms

    • 66
    • 92

    Mostly Sunny

    • 66
    • 93

    Sunny

    • 66
    • 95

    Sunny

Today 26 Aug San Diego County Inland Valleys

Partly cloudy. Patchy fog this morning. A slight chance of Showers and Thunderstorms this afternoon. Highs 81 to 86 in the western Valleys to 85 to 90 near the Foothills. Areas of Winds west to 10 Mph. Becoming 10 to 15 Mph this afternoon. Chance of measurable precipitation 20 percent.

Tonight 26 Aug San Diego County Inland Valleys

Mostly clear in the evening. Becoming partly cloudy overnight with patchy fog. Lows 61 to 65. Light Winds.

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Barrett Junction Temperature Statistics

August Temperature

San Diego, Brown Field Municipal Airport (16.8 miles)

  • Lowest 3 August, 2025

    57.7 °F

  • Average August

    71.7 °F

  • Highest 23 August, 2025

    90 °F

Climate (2020–Present)

San Diego, Brown Field Municipal Airport (16.8 miles)

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  • Average Low 2020–2025

    54 °F

  • Average 2020–2025

    63.4 °F

  • Average High 2020–2025

    73.9 °F
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