Grantville Weather Forecast

    • 69
    • 84

    Decreasing Clouds

    • 68
    • 83

    Partly Sunny

    • 67
    • 81

    Partly Sunny

    • 67
    • 80

    Mostly Cloudy

    • 67
    • 79

    Mostly Cloudy

    • 67
    • 81

    Mostly Cloudy

Today 10 Aug San Diego County Coastal Areas

Patchy fog this morning. Partly cloudy. Highs 75 to 80 near the coast to 81 to 85 inland. Areas of Winds southwest to 10 Mph.

Tonight 10 Aug San Diego County Coastal Areas

Partly cloudy in the evening. Becoming mostly cloudy overnight with patchy fog. Lows 64 to 69. Areas of Winds west to 10 Mph in the evening becoming light.

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  • Temperature Real-Time

Grantville Temperature Statistics

August Temperature

San Diego, Montgomery Field (2.5 miles)

  • Lowest 5 August, 2026

    67.6 °F

  • Average August

    76 °F

  • Highest 7 August, 2026

    85.6 °F

Climate (2021–2026)

San Diego, Montgomery Field (2.5 miles)

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  • Average Low 2021–2026

    56.2 °F

  • Average 2021–2026

    64.4 °F

  • Average High 2021–2026

    73.4 °F
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