The trough system that dumped torrential rain over parts of NSW has moved out to the Tasman Sea but it will linger along the state's coastline over the next three days.
Emergency services have responded to 450 calls for help across NSW on Saturday and overnight, but there was not too much damage, SES spokesman Phil Campbell told AAP.
The bulk of the calls for assistance during Saturday was in the Riverina and Central West, he said.
This was due to two severe weather warnings over the state affecting areas of the Snowy Mountains, the Riverina, south coast and central west.
The weather bureau said areas around Tumut copped the most amount of rain in the state with Cabramurra receiving 85mm of rain in the past 24 hours to 8am on Sunday.
Saturday afternoon's thunderstorms and damaging winds around Gosford and Sydney kept the SES busy with leaky roofs and fallen branches.
The weather bureau on Sunday lifted flood warnings for Murrumbidgee and Murray rivers, with central west and southern NSW to minor.
There will be scattered showers across NSW for Sunday, mainly in the southeastern parts of the state and north coast.
But the east coast of NSW should prepare for a possible east coast low which could hit on Tuesday.
Such a weather event could see gale or storm force winds along the coast, widespread heavy rain, rough seas and dangerous surf.
"We're seeing this trough off the NSW coast becoming an east coast low on Tuesday and Wednesday," meteorologist Gabrielle Woodhouse told AAP on Sunday.