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

Hazardous Weather Conditions

Current conditions at

DW5683 Carlsbad (D5683)

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

NA

65°F

18°C

Humidity 63%
Wind Speed N 0 MPH
Barometer 30.15 in (1021.0 mb)
Dewpoint 52°F (11°C)
Visibility NA
Last update 12 Mar 05:00 AM PDT
Extended Forecast for

San Marcos CA

Heat Advisory March 12, 10:00am until March 13, 08:00pm
Click here for hazard details and duration
Heat Advisory

  • Today

    Today: Sunny, with a high near 90. Northeast wind 5 to 10 mph becoming west in the afternoon. Winds could gust as high as 20 mph.

    High: 90 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 60. Calm wind becoming east around 5 mph after midnight.

    Low: 60 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 90. East wind 5 to 10 mph becoming west in the morning.

    High: 90 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 59. Calm wind becoming south around 5 mph after midnight.

    Low: 59 °F

    Patchy Fog

  • Saturday

    Saturday: Patchy fog before 11am. Otherwise, partly sunny, with a high near 83. Light and variable wind becoming southwest 5 to 10 mph in the afternoon.

    High: 83 °F

    Patchy Fog
    then Partly
    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 54.

    Low: 54 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 83.

    High: 83 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 57.

    Low: 57 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 88.

    High: 88 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 90. Northeast wind 5 to 10 mph becoming west in the afternoon. Winds could gust as high as 20 mph.
Tonight
Mostly clear, with a low around 60. Calm wind becoming east around 5 mph after midnight.
Friday
Mostly sunny, with a high near 90. East wind 5 to 10 mph becoming west in the morning.
Friday Night
Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 59. Calm wind becoming south around 5 mph after midnight.
Saturday
Patchy fog before 11am. Otherwise, partly sunny, with a high near 83. Light and variable wind becoming southwest 5 to 10 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 54.
Sunday
Mostly sunny, with a high near 83.
Sunday Night
Mostly clear, with a low around 57.
Monday
Sunny, with a high near 88.
Monday Night
Mostly clear, with a low around 60.
Tuesday
Sunny, with a high near 91.
Tuesday Night
Mostly clear, with a low around 61.
Wednesday
Sunny, with a high near 90.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
San Marcos CA
 33.13°N 117.15°W (Elev. 794 ft)
Last Update:
12:27 am PDT Mar 12, 2026
Forecast Valid:
5am PDT Mar 12, 2026-6pm PDT Mar 18, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation