More than 1100 firefighters are battling 65 bushfires across NSW, including five out of control.
An emergency warning has been put back in place for a blaze in Cessnock after it was downgraded to a watch and act by the Rural Fire Service.
About 175 firefighters are battling the bushfire, which is threatening about 50 homes.
A separate fire has broken out in nearby Heddon Greta, east of Cessnock.
Another emergency warning is in place for a blaze off Lone Pine Road in Port Stephens covering 620 hectares.
Two other bushfires burn out of control at Wollongong and Shoalhaven while 31 more are still uncontained.
The blazes have been fanned by hot and gusty conditions, with winds up to 89km/h blasting NSW on Saturday.
However the RFS says conditions are expected to ease by Saturday night.
A 16-year-old boy was charged on Saturday morning after a bushfire which destroyed at least one home and damaged other properties in Sydney’s west on Friday.
It began in the Llandilo area on Friday afternoon and spread over 300ha, destroying at least one home, significantly damaging others and causing evacuations from schools and nursing homes before it was contained.
The youth, who was arrested at Penrith, has been charged with intentionally causing a fire and being reckless as to its spread.
The RFS says NSW could continue to experience similar weather until a cool change on Wednesday.
"It will still be warm and dry on Sunday, heating up on Monday and on Tuesday - we could see some hot and windy weather before some possible cooler weather returns on Wednesday," RFS Inspector Ben Shepherd told AAP.
