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

DW5683 Carlsbad (D5683)

Lat: 33.12255°NLon: 117.22785°WElev: 583.0ft.

NA

71°F

22°C

Humidity 49%
Wind Speed N 0 MPH
Barometer 30.03 in (1016.93 mb)
Dewpoint 51°F (11°C)
Visibility NA
Last update 30 Dec 02:30 PM PST
Extended Forecast for

San Marcos CA

  • This Afternoon

    This Afternoon: Mostly cloudy, with a high near 76. East wind around 10 mph, with gusts as high as 20 mph.

    High: 76 °F

    Mostly Cloudy

  • Tonight

    Tonight: A slight chance of sprinkles before 10pm, then a chance of showers after 4am. Mostly cloudy, with a low around 60. East wind 5 to 10 mph becoming north after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 60 °F

    Mostly Cloudy
    then Chance
    Showers

  • Wednesday

    Wednesday: Showers likely, mainly after 10am. Mostly cloudy, with a high near 68. Northeast wind 5 to 10 mph becoming southeast in the morning. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    High: 68 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: Showers. The rain could be heavy at times. Low around 56. East wind around 5 mph. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 56 °F

    Heavy Rain

  • New Year's Day

    New Year's Day: Showers, mainly before 4pm. The rain could be heavy at times. High near 65. Southeast wind 5 to 10 mph. Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.

    High: 65 °F

    Heavy Rain

  • Thursday Night

    Thursday Night: A chance of showers, mainly before 10pm. Mostly cloudy, with a low around 55. Chance of precipitation is 40%.

    Low: 55 °F

    Chance
    Showers

  • Friday

    Friday: A slight chance of showers after 4pm. Mostly cloudy, with a high near 65. Chance of precipitation is 10%.

    High: 65 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Friday Night

    Friday Night: A chance of showers, mainly after 10pm. Mostly cloudy, with a low around 53.

    Low: 53 °F

    Chance
    Showers

  • Saturday

    Saturday: A chance of showers. Mostly cloudy, with a high near 64.

    High: 64 °F

    Chance
    Showers

Detailed Forecast

This Afternoon
Mostly cloudy, with a high near 76. East wind around 10 mph, with gusts as high as 20 mph.
Tonight
A slight chance of sprinkles before 10pm, then a chance of showers after 4am. Mostly cloudy, with a low around 60. East wind 5 to 10 mph becoming north after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
Showers likely, mainly after 10am. Mostly cloudy, with a high near 68. Northeast wind 5 to 10 mph becoming southeast in the morning. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
Showers. The rain could be heavy at times. Low around 56. East wind around 5 mph. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.
New Year's Day
Showers, mainly before 4pm. The rain could be heavy at times. High near 65. Southeast wind 5 to 10 mph. Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.
Thursday Night
A chance of showers, mainly before 10pm. Mostly cloudy, with a low around 55. Chance of precipitation is 40%.
Friday
A slight chance of showers after 4pm. Mostly cloudy, with a high near 65. Chance of precipitation is 10%.
Friday Night
A chance of showers, mainly after 10pm. Mostly cloudy, with a low around 53.
Saturday
A chance of showers. Mostly cloudy, with a high near 64.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 51.
Sunday
A chance of showers. Mostly cloudy, with a high near 64.
Sunday Night
A slight chance of showers. Mostly cloudy, with a low around 48.
Monday
A slight chance of showers. Partly sunny, with a high near 65.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
San Marcos CA
 33.15°N 117.16°W (Elev. 669 ft)
Last Update:
12:27 pm PST Dec 30, 2025
Forecast Valid:
2pm PST Dec 30, 2025-6pm PST Jan 5, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation