Total fire bans have been declared across much of NSW, including the greater Sydney region, where the fire danger is expected to be severe.
The fire bans will be in place from midnight (AEDT) on Saturday for the far north coast, north coast, greater Hunter, greater Sydney region, Illawarra and Shoalhaven, central ranges, New England, northern slopes, northwestern and upper central west plains districts.
Severe fire weather would affect towns including Newcastle, Narrabri, Lismore and Coffs Harbour, the Rural Fire Service said on Saturday.
The Bureau of Meteorology said a front would move through eastern NSW on Sunday, increasing westerly winds ahead of a strong southerly change moving up the coast.
Temperatures would drop but humidity would remain low into the evening, the bureau said.
