San Carlos Weather Forecast

    • 48
    • 73

    Increasing Clouds

    • 47
    • 72

    Decreasing Clouds

    • 51
    • 78

    Mostly Sunny

    • 54
    • 82

    Mostly Sunny

    • 54
    • 79

    Partly Sunny

    • 52
    • 75

    Mostly Cloudy

    • 50
    • 70

    Partly Sunny

Today 27 Jan San Diego County Inland Valleys

Mostly sunny. Highs 71 to 74 in the western Valleys to 67 to 72 near the Foothills. Areas of Winds east 10 to 15 Mph with Gusts to 25 Mph becoming west this afternoon.

Tonight 27 Jan San Diego County Inland Valleys

Partly cloudy. Lows 40 to 49 in wind Sheltered Areas to 46 to 52 in warmer Locations. Light Winds.

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  • Temperature Real-Time

San Carlos Temperature Statistics

January Temperature

Gillespie Field Airport (4.3 miles)

  • Lowest 10 January, 2026

    35.6 °F

  • Average January

    53.4 °F

  • Highest 14 January, 2026

    82.4 °F

Climate (2021–Present)

Gillespie Field Airport (4.3 miles)

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  • Average Low 2021–2026

    53.2 °F

  • Average 2021–2026

    60.2 °F

  • Average High 2021–2026

    75.8 °F
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