Lake San Marcos Weather Forecast

    • 53
    • 77

    Sunny

    • 54
    • 84

    Mostly Sunny

    • 53
    • 74

    Mostly Sunny

    • 51
    • 70

    Mostly Sunny

    • 55
    • 75

    Sunny

    • 57
    • 82

    Mostly Sunny

Today 7 Mar San Diego County Coastal Areas

Mostly sunny. Highs 76 to 79. Areas of Winds north 10 to 15 Mph with Gusts to 30 Mph.

Tonight 7 Mar San Diego County Coastal Areas

Mostly clear. Lows 51 to 54. Areas of Winds north 10 to 15 Mph with Gusts to 25 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lake San Marcos Temperature Statistics

March Temperature

Carlsbad, McClellan-Palomar Airport (3.7 miles)

  • Lowest 3 March, 2026

    52 °F

  • Average March

    60.8 °F

  • Highest 1 March, 2026

    75.9 °F

Climate (2021–Present)

Carlsbad, McClellan-Palomar Airport (3.7 miles)

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  • Average Low 2021–2026

    56.8 °F

  • Average 2021–2026

    62.6 °F

  • Average High 2021–2026

    68.9 °F
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