San Marcos, California Weather
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Weather Forecast for San Marcos, California : San Diego County
Issued: 2:43 am PDT Jul 4, 2025 Latitude: 33.1433723 Longitude: -117.1661449 View on Google Maps

MouseOver for Detail Forecast
Independence Day Tonight Saturday Sunday Monday Tuesday Wednesday Thursday
Morning Fog on Independence Day Patchy Fog on Tonight Morning Fog on Saturday Morning Fog on Sunday Sunny on Monday Sunny on Tuesday Sunny on Wednesday Sunny on Thursday
High: 81°F Low: 60°F High: 84°F High: 83°F High: 81°F High: 84°F High: 88°F High: 87°F
  Low: 60°F Low: 61°F Low: 62°F Low: 66°F Low: 69°F  
Morning Fog Patchy Fog Morning Fog Morning Fog Sunny Sunny Sunny Sunny
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Current Conditions at
CARLSBAD - (KCRQ)
66°
Mostly Clear
as of 8:37 AM PDST
Rel. Humidity: 72%
Dew Point: 57°F
Visibility: 10 Miles
Pressure: 30.01 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Few at 1300ft
Current Conditions at
OCEANSIDE - (KOKB)
66°
Cloudy
Haze
as of 7:52 AM PDST
Rel. Humidity: 77%
Dew Point: 59°F
Visibility: 5 Miles
Pressure: 30.01 in.
Flight Rule: MVFR
Wind Data
3 MPH
020° North
Cloud Level(s): Solid Overcast at 1500ft
Current Conditions at
CAMP PENDLETON - (KNFG)
66°
Partly Cloudy
as of 8:27 AM PDST
Rel. Humidity: 72%
Dew Point: 57°F
Visibility: 10 Miles
Pressure: 30.02 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Scattered at 1500ft
Current Conditions at
RAMONA - (KRNM)
59°
Clear
as of 8:06 AM PDST
Rel. Humidity: 87%
Dew Point: 55°F
Visibility: 8 Miles
Pressure: 30.03 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Clear
Morning Fog on Independence Day Independence Day... Patchy fog before 11am. Otherwise, mostly sunny, with a high near 81. Light west wind increasing to 5 to 10 mph in the morning.
Patchy Fog on Tonight Tonight... Patchy fog after 11pm. Otherwise, partly cloudy, with a low around 60. West wind around 5 mph becoming calm in the evening.
Morning Fog on Saturday Saturday... Patchy fog before 11am. Otherwise, mostly sunny, with a high near 84. Light west wind increasing to 5 to 10 mph in the morning.
Patchy Fog on Saturday Night Saturday Night... Patchy fog after 11pm. Otherwise, partly cloudy, with a low around 60. West wind around 5 mph becoming calm in the evening.
Morning Fog on Sunday Sunday... Patchy fog before 11am. Otherwise, mostly sunny, with a high near 83. Light west wind increasing to 5 to 10 mph in the morning.
Mostly Clear on Sunday Night Sunday Night... Mostly clear, with a low around 61.
Sunny on Monday Monday... Sunny, with a high near 81.
Mostly Clear on Monday Night Monday Night... Mostly clear, with a low around 62.
Sunny on Tuesday Tuesday... Sunny, with a high near 84.
Mostly Clear on Tuesday Night Tuesday Night... Mostly clear, with a low around 66.
Sunny on Wednesday Wednesday... Sunny, with a high near 88.
Mostly Clear on Wednesday Night Wednesday Night... Mostly clear, with a low around 69.
Sunny on Thursday Thursday... Sunny, with a high near 87.
Current Radar Image


Sun Almanac for San Marcos, California
Sunrise: 05:45 AM
Sunset: 8:01 PM
Civil Sunrise:05:16 AM
Civil Sunset: 8:30 PM
Nautical Sunrise: 04:41 AM
Nautical Sunset: 9:05 PM
Astro Sunrise: 04:04 AM
Astro Sunset: 9:43 PM
Any use of the information on this page is at your own risk. This information should not be relied upon in life-threatening situations, potential financial loss situations or in lieu of any officially disseminated information. Visit the National Weather Service for official information.