The 95-year-old monarch is ready to celebrate her first Christmas without her late husband.
Despite a difficult year, she will address the nation at 3pm on Saturday, December 25.
These are frequently recorded in early December.
The late Duke of Edinburgh will be remembered in this year's address, sources informed The Telegraph.
Prince Philip died in April at the age of 99 after nearly 74 years of marriage.
Due to coronavirus limitations, the Queen had to sit alone in St George's Chapel for his funeral.
It was announced tonight that a memorial ceremony for the Duke of Edinburgh will be held at Westminster Abbey next Spring.
Queen Elizabeth has been out of the public eye since early October due to illness.
The monarch is shown in the White Drawing Room of Windsor Castle, in front of a lit Christmas tree.
She is wearing a Christmas red embossed wool shift dress by British designer Angela Kelly, and a sapphire chrysanthemum brooch worn by Princess Elizabeth on her honeymoon to Broadlands country residence in 1947, and for the couple's Diamond Wedding celebrations.
On her desk is a portrait of the monarch with her late spouse.
For their Diamond Wedding Anniversary, the couple posed at Broadlands in Hampshire in 2007.
Following an increase in coronavirus infections, the Queen will be joined at Windsor Castle on Christmas Day by the Prince of Wales and the Duchess of Cornwall.
Prince William and Kate will spend Christmas in Norfolk, a spokesman said.
The Queen's Christmas message ends a year full of both joy and tragedy.
Princess Elizabeth and The Duke of Edinburgh took a stroll at Broadlands, Hampshire, in their first public appearance since their wedding.
August to Princess Eugenie, Lucas to Zara Tindall, Lilibet to the Duke and Duchess of Sussex, and Sienna to Princess Beatrice.
Also, following Harry and Meghan's explosive encounter with US talk show queen Oprah Winfrey, in which they accused an unnamed royal of bigotry, there was scandal.
Virginia Giuffre also filed a lawsuit against the Duke of York for allegedly sexually assaulting her as a minor. Andrew has refuted all allegations.
The Queen praised the ‘indomitable spirit' of individuals who had ‘magnificently' risen to the challenges of the coronavirus pandemic in her 2020 Christmas broadcast.