Firefighters could be given some reprieve as they battle major bushfires that have razed more than 100,000 hectares in NSW.
While the weather is expected to remain warm and dry and some areas will face very high danger in coming days, the weather conditions will be "reasonably benign", the Bureau of Meteorology says.
Duty forecaster Neale Fraser said a high pressure system meant wind wasn't going to be a factor.
"You need the combination of the dry conditions, the warm and the fairly strong winds to lead to severe and extreme fire danger," he told AAP on Thursday.
He said longer term, conditions could potentially worsen towards the end of next week.
Warnings for three massive blazes at Bees Nest near Armidale, Drake near Tenterfield, and Shark Creek in the Clarence Valley remained at 'advice' levels on Thursday after the threat eased.
But the NSW Rural Fire Service issued a more serious 'watch and act' warning for a new fire east of Glen Innes in the evening, warning that it was spreading quickly through bushland and could threaten properties.
As of 5pm, there were 51 bush and grass fires burning across NSW with 27 uncontained.
The Bees Nest blaze has razed more than 78,600 hectares and is still burning close to homes and properties, but conditions have eased.
The Long Gully Road blaze at Drake has burnt more than 47,500ha and continues to spread in a number of directions due to winds and local terrain.
Meanwhile, the Shark Creek fire has torn through more than 10,100ha.
Several regions will experience very high fire danger on Friday, including the Far North Coast, New England and the Northern Slopes, with the North Coast, Greater Hunter and Illawarra regions are among those given a high fire danger rating.
Prime Minister Scott Morrison in a video on Wednesday night said those affected by fires in Queensland and NSW could count on the support of their fellow Australians and state and federal governments.
"These disasters hit us but how we respond as Australians is always remarkable," Mr Morrison said.