Barrett Junction Weather Forecast

    • 55
    • 81

    Mostly Sunny

    • 56
    • 84

    Mostly Sunny

    • 62
    • 89

    Mostly Sunny

    • 64
    • 90

    Mostly Sunny

    • 62
    • 92

    Sunny

Today 21 Jun San Diego County Inland Valleys

Partly cloudy with patchy fog this morning. Becoming sunny. Highs 73 to 76 in the western Valleys to 76 to 81 near the Foothills. Areas of Winds west to 10 Mph. Becoming 10 to 15 Mph with Gusts to 25 Mph this afternoon.

Tonight 21 Jun San Diego County Inland Valleys

Mostly clear in the evening. Becoming mostly cloudy overnight with patchy fog. Lows 53 to 57. Areas of Winds west to 10 Mph in the evening becoming light.

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Barrett Junction Temperature Statistics

June Temperature

San Diego, Brown Field Municipal Airport (16.8 miles)

  • Lowest 9 June, 2026

    56.6 °F

  • Average June

    68.2 °F

  • Highest 12 June, 2026

    86.6 °F

Climate (2021–2026)

San Diego, Brown Field Municipal Airport (16.8 miles)

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  • Average Low 2021–2026

    54.3 °F

  • Average 2021–2026

    63.8 °F

  • Average High 2021–2026

    74.2 °F
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