In a statement following the lifting of the lockdown, Cpl. Cheryl Bush said someone called the school with a "non-specific" threat and claimed they had a weapon.
Bush says RCMP locked down the school until they could determine it was safe inside.
Police then set up a meeting place for parents at nearby Pineridge Elementary School.
After ensuring the outer perimeter of Summit Elementary was safe, Bush says the children were bussed to Pineridge where they were reunited with their parents shortly after 5 p.m. PT.
RCMP are conducting an investigation into the origin of the call. Anyone with any information is asked to call the Kelowna RCMP or CrimeStooppers.