San Dieguito River Mouth Weather Forecast

    • 72
    • 84

    Patchy Fog

    • 72
    • 85

    Mostly Cloudy

    • 72
    • 85

    Partly Sunny

    • 70
    • 84

    Partly Sunny

    • 68
    • 78

    Partly Sunny

    • 67
    • 77

    Partly Sunny

    • 69
    • 78

    Mostly Cloudy

Today 26 Aug San Diego County Coastal Areas

Partly cloudy with patchy fog this morning. Becoming mostly sunny. Highs 81 to 86 near the coast to 89 to 94 inland. Areas of Winds southwest to 10 Mph.

Tonight 26 Aug San Diego County Coastal Areas

Partly cloudy this evening. Becoming mostly cloudy. Patchy fog overnight. Lows 69 to 72. Light Winds.

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San Dieguito River Mouth Temperature Statistics

August Temperature

San Diego, Miramar MCAS/Mitscher Field Airport (9.9 miles)

  • Lowest 8 August, 2026

    62.1 °F

  • Average August

    74 °F

  • Highest 23 August, 2026

    93.9 °F

Climate (2021–2026)

San Diego, Miramar MCAS/Mitscher Field Airport (9.9 miles)

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  • Average Low 2021–2026

    52.9 °F

  • Average 2021–2026

    62 °F

  • Average High 2021–2026

    72.4 °F
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