National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

DW5683 Carlsbad (D5683)

Lat: 33.1225°NLon: 117.2275°WElev: 592.52ft.

NA

51°F

11°C

Humidity 78%
Wind Speed N 0 MPH
Barometer 30.17 in (1021.67 mb)
Dewpoint 44°F (7°C)
Visibility NA
Last update 22 Feb 11:15 PM PST
Extended Forecast for

San Marcos CA

  • Tonight

    Tonight: Mostly clear, with a low around 51. Calm wind becoming east around 5 mph.

    Low: 51 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 78. Calm wind becoming west around 5 mph in the afternoon.

    High: 78 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 53. Calm wind.

    Low: 53 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 78. Light and variable wind becoming west 5 to 10 mph in the afternoon.

    High: 78 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 55. Calm wind.

    Low: 55 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 78.

    High: 78 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Patchy fog after 10pm. Otherwise, partly cloudy, with a low around 55.

    Low: 55 °F

    Patchy Fog

  • Thursday

    Thursday: Patchy fog before 10am. Otherwise, mostly sunny, with a high near 80.

    High: 80 °F

    Patchy Fog
    then Mostly
    Sunny

  • Thursday Night

    Thursday Night: Patchy fog after 1am. Otherwise, mostly clear, with a low around 57.

    Low: 57 °F

    Mostly Clear
    then Patchy
    Fog

Detailed Forecast

Tonight
Mostly clear, with a low around 51. Calm wind becoming east around 5 mph.
Monday
Mostly sunny, with a high near 78. Calm wind becoming west around 5 mph in the afternoon.
Monday Night
Partly cloudy, with a low around 53. Calm wind.
Tuesday
Mostly sunny, with a high near 78. Light and variable wind becoming west 5 to 10 mph in the afternoon.
Tuesday Night
Partly cloudy, with a low around 55. Calm wind.
Wednesday
Mostly sunny, with a high near 78.
Wednesday Night
Patchy fog after 10pm. Otherwise, partly cloudy, with a low around 55.
Thursday
Patchy fog before 10am. Otherwise, mostly sunny, with a high near 80.
Thursday Night
Patchy fog after 1am. Otherwise, mostly clear, with a low around 57.
Friday
Patchy fog before 10am. Otherwise, mostly sunny, with a high near 81.
Friday Night
Patchy fog. Otherwise, partly cloudy, with a low around 58.
Saturday
Patchy fog. Otherwise, mostly sunny, with a high near 78.
Saturday Night
Patchy fog. Otherwise, partly cloudy, with a low around 56.
Sunday
Patchy fog. Otherwise, partly sunny, with a high near 76.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
San Marcos CA
 33.13°N 117.18°W (Elev. 600 ft)
Last Update:
11:55 am PST Feb 22, 2026
Forecast Valid:
11pm PST Feb 22, 2026-6pm PST Mar 1, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation