Residents and business owners cleared to return are assessing the damage to their properties after they were hit with 200mm to 250mm of rain in 24 hours.
This is how the wild weather has unfolded, in pictures:
An Airbnb cabin in Illawara was ripped from its foundations and washed away by the downpour. The couple trapped inside managed to escape. Source: AAP / Dean Lewins
The flooded ferry wharf in Paramatta on Friday. Source: Getty / Saeed Khan
SES workers performed over 100 rescues on Saturday. Source: Getty / James D. Morgan
A landslide damaged Megalong Rd in the Blue Mountains, isolating some residents. Source: AAP / Supplied
Cattle in a flooded paddock on Friday. Source: Getty / James D. Morgan
An aerial shot of flooding in North Narrabeen. Some areas were under evacuation orders. Source: AAP / Tim Seaton
Heavy rain caused a landslide at Coatcliff in Wollongong, with fallen rocks and debris cutting off the road. Source: Getty / Saeed Khan
Floodwaters in front of an automotive repair shop in North Narrabeen. Source: Getty
Heavy rain caused landslides, with debris bursting a pipe and causing it to spill out onto the road. Source: Getty
NSW SES workers have performed rescues in rivers inundated by rainfall. Credit: Twitter/NSW SES
Stables partially flooded in the Richmond and Windsor region. Source: Getty / Jenny Evans
More than 4,000 NSW SES volunteers have responded to incidents statewide following the wild weather. Credit: Twitter/NSW SES
Flooding on Corrimal St in Corrimal, Wollongong. Source: AAP, Supplied / SUPPLIED/PR IMAGE
Source Agencies