Rancho Penasquitos Weather Forecast

    • 66
    • 85

    Mostly Sunny

    • 67
    • 85

    Mostly Sunny

    • 67
    • 86

    Mostly Sunny

    • 67
    • 86

    Mostly Sunny

    • 67
    • 86

    Mostly Sunny

    • 68
    • 86

    Mostly Sunny

    • 68
    • 87

    Mostly Sunny

Today 20 Aug San Diego County Inland Valleys

Patchy fog this morning. Partly cloudy. Highs 86 to 90 in the western Valleys to 92 to 97 near the Foothills. Areas of Winds southwest to 10 Mph.

Tonight 20 Aug San Diego County Inland Valleys

Mostly clear this evening. Becoming partly cloudy. Patchy fog overnight. Lows 65 to 71. Light Winds.

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Rancho Penasquitos Temperature Statistics

August Temperature

San Diego, Miramar MCAS/Mitscher Field Airport (6.8 miles)

  • Lowest 8 August, 2026

    62.1 °F

  • Average August

    73.5 °F

  • Highest 2 August, 2026

    87.1 °F

Climate (2021–2026)

San Diego, Miramar MCAS/Mitscher Field Airport (6.8 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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