One Direction's Liam Payne said: "The pictures I have seen of little children in between the ruins made my heart break.
"All of us in the band are shocked by how many people need help, so we're asking the public to continue to be as generous as they possibly can."
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The forecast is generally calm, quiet and dry as an area of cloud gives way to the south east and moves off to the near continent.
Artists have retold the stories of "imponderable brutality and evil" in works created to remember the Holocaust.
ITV News joins 85-year-old Holocaust survivor Zigi Shipper on his emotional return to the Auschwitz death camp.