Ms Edwards was last seen wearing black pants, a khaki green jacket and carrying a small back pack.
She was described as Caucasian, about 170 centimetres tall with shoulder length brown hair.
Police have appealed to Leanne, or anyone who knows her whereabouts, to come forward.
“Obviously it does get to cooler temperatures at this time of year,” Constable Michael Foreman told reporters.
Temperatures were expected to drop to eight degrees on Monday night.
Meanwhile, police have launched a separate search for a 45-year-old woman missing from Logan.
Yujie Fu was last seen on Renita Street at Slacks Creek about 12.30pm on Friday and has not been seen or heard from since.
She was driving a white 2008 Toyota Corolla hatchback with Queensland registration 126YYE.
Police and family hold serious concern for her welfare as she has a medical condition.