San Marcos Weather Forecast

    • 38
    • 52

    Rain Showers Likely

    • 41
    • 54

    Mostly Sunny

    • 42
    • 60

    Mostly Cloudy

    • 48
    • 62

    Rain

    • 44
    • 57

    Rain Showers

    • 43
    • 60

    Partly Sunny

    • 45
    • 65

    Partly Sunny

Today 25 Jan San Diego County Inland Valleys

Showers and slight chance of Thunderstorms. Locally heavy rainfall possible in the morning. Highs around 52 in the western Valleys to 41 to 46 near the Foothills. Areas of Winds west 35 to 45 Mph with Gusts to 60 Mph.

Tonight 25 Jan San Diego County Inland Valleys

Mostly cloudy with Showers likely and slight chance of Thunderstorms in the Evening, then partly cloudy with a chance of Showers overnight. Colder. Lows 31 to 39. Areas of Winds west 20 to 30 Mph with Gusts to 45 Mph. Chance of measurable precipitation 70 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

San Marcos Temperature Statistics

January Temperature

Carlsbad, McClellan-Palomar Airport (6.2 miles)

  • Lowest 9 January, 2021

    43 °F
  • Average January

    57.2 °F
  • Highest 15 January, 2021

    87.1 °F

Climate (2010–Present)

Carlsbad, McClellan-Palomar Airport (6.2 miles)

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  • Average Low 2010–Present

    57.3 °F
  • Average 2010–Present

    62.8 °F
  • Average High 2010–Present

    69.5 °F
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