Inside King Charles’ (Sad) Life Since Cancer DIagnosis

The King braved the rain with Queen Camilla in what has become a weekly tradition during his cancer treatment

King Charles stepped out in Sandringham with Queen Camilla for their weekly church outing just days after Prince Harry spoke about his father’s cancer diagnosis for the first time.

King Charles, 75, and Queen Camilla, 76, braved the rain to attend the service at St. Mary Magdalene Church on Sunday. He gave a wave to well-wishers gathered outside in what has become a recent weekly tradition.

The King has been mainly staying on the royal family’s Sandringham estate in Norfolk since the palace revealed on Feb. 5 that he had been diagnosed with cancer. However, he has traveled to London for treatment as well as meetings with palace staff.

A source later told PEOPLE of the family reunion, “That is good. Hopefully [Harry] will bring the grandchildren at some point too, as that would be lovely for all of them.”

Prince Harry, 39, spoke about his dad’s health news with Good Morning America‘s Will Reeve in an interview that aired on Friday in conjunction with his trip to Canada for the Invictus Games one-year-to-go event.

When asked how he first learned about his father’s cancer diagnosis, the Duke of Sussex replied, “I spoke to him. I jumped on a plane and went to go see him as soon as I could.”

“Look, I love my family. The fact that I was able to get on a plane and go and see him and spend any time with him, I’m grateful for that,” Harry added.

When asked about his outlook on the state of his father’s health, he said, “That stays between me and him.”