San Carlos Weather Forecast

    • 68
    • 88

    Decreasing Clouds

    • 68
    • 87

    Partly Sunny

    • 68
    • 87

    Patchy Fog

    • 67
    • 87

    Partly Sunny

    • 67
    • 86

    Mostly Sunny

    • 67
    • 87

    Partly Sunny

Today 25 Jul San Diego County Inland Valleys

Mostly sunny this morning. Becoming partly cloudy. Highs 86 to 91 in the western Valleys to 94 to 99 near the Foothills. Areas of Winds west to 10 Mph.

Tonight 25 Jul San Diego County Inland Valleys

Partly cloudy. Lows 65 to 71. Areas of Winds west to 10 Mph in the evening becoming light.

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San Carlos Temperature Statistics

July Temperature

Gillespie Field Airport (4.3 miles)

  • Lowest 2 July, 2026

    60.8 °F

  • Average July

    71.5 °F

  • Highest 15 July, 2026

    93.2 °F

Climate (2021–2026)

Gillespie Field Airport (4.3 miles)

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  • Average Low 2021–2026

    53.5 °F

  • Average 2021–2026

    60.5 °F

  • Average High 2021–2026

    76.2 °F
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