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December 19th, 2025 :: 5:44 pm PST   

Local Weather Report for
San Marcos
California, United States

 San Marcos Weather Forecast Summary  
 
Today
Dec 19th
Saturday
Dec 20th
Sunday
Dec 21st
Monday
Dec 22nd
Tuesday
Dec 23rd
Mix of Cloud and Sun Cloudy Cloudy Cloudy Cloudy
77°F
72°F
53°F
72°F
55°F
71°F
55°F
70°F
54°F
 
 San Marcos Detailed Weather Forecast  
 
Friday, December 19th, 2025
Evening Temperature: 56°F
Clear.
Saturday, December 20th, 2025
Overnight Temperature: 53°F
Clear.
Morning Temperature: 69°F
A mix of cloud and sun.
Afternoon Temperature: 63°F
A mix of cloud and sun.
Evening Temperature: 56°F
Cloudy.
Sunday, December 21st, 2025
Overnight Temperature: 55°F
Cloudy.
Morning Temperature: 70°F
Cloudy.
Afternoon Temperature: 64°F
Cloudy.
Evening Temperature: 57°F
Cloudy.
Monday, December 22nd, 2025
Overnight Temperature: 56°F
Cloudy.
Morning Temperature: 69°F
Cloudy.
Afternoon Temperature: 63°F
Cloudy.
Evening Temperature: 56°F
Cloudy.
Tuesday, December 23rd, 2025
Overnight Temperature: 54°F
A mix of cloudy and clear skies.
Morning Temperature: 68°F
Cloudy.
Afternoon Temperature: 61°F
Cloudy.
Evening Temperature: 58°F
Cloudy.
Wednesday, December 24th, 2025
Overnight Temperature: 59°F
Cloudy with a chance of showers.
Morning Temperature: 58°F
Cloudy with showers.
Afternoon Temperature: 56°F
Sunny with cloudy periods with a few showers.
Evening Temperature: 53°F
Cloudy with a slight chance of showers.
Thursday, December 25th, 2025
Overnight Temperature: 53°F
Cloudy with a slight chance of showers.
Morning Temperature: 62°F
Cloudy with a chance of showers. Windy at times.
Afternoon Temperature: 58°F
Cloudy with a slight chance of showers.
Evening Temperature: 54°F
Cloudy.
Friday, December 26th, 2025
Overnight Temperature: 52°F
A mix of cloudy and clear skies.
Morning Temperature: 63°F
Mostly sunny.
Afternoon Temperature: 59°F
Cloudy with a chance of showers. Windy at times.
Evening Temperature: 55°F
Clear with cloudy periods with a few showers. Slight chance of a thunderstorm. Windy at times.
Saturday, December 27th, 2025
Overnight Temperature: 53°F
Cloudy with showers likely.
Morning Temperature: 55°F
Cloudy with a slight chance of showers.
Afternoon Temperature: 54°F
Sunny with cloudy periods.
Evening Temperature: 50°F
Clear.





 

  [ Local Weather Report ]
Escondido, CA 
 
Vista, CA 
4:53 PM  57°F
moderate fog
 
Carlsbad, CA 
4:53 PM  57°F
moderate fog
 
Encinitas, CA 
 
Oceanside, CA 
4:50 PM  57°F
mist
 
Solana Beach, CA 
 
Camp Pendleton, CA 
4:52 PM  55°F
mist
 
Del Mar, CA 
 
Poway, CA 
 
Ramona, CA 
4:53 PM  66°F
 

 
This WeatherCity Weather Forecast for San Marcos, California, United States is computed using a computer-generated forecast model and should be considered experimental. Please confirm this weather information with your official weather information office

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