Much of Tasmania received rainfall on Friday, between two and 18 millimetres, but it will not be enough to significantly help conditions at Fingal TFS fire incident controller Steve Lowe said.
The second lowest fire danger rating, a high fire danger rating, is expected for the town from Saturday through to Tuesday.
However as mainland Australia braces for elevated fire danger weather continuing, conditions in Tasmania are expected to ease before a cold front on Monday.
"It is difficult in the Fingal Valley as there is extremely dry ground conditions," Mr Lowe said.
"It is not expected we will get significant levels of rain at Fingal, less than two to three millimetres overnight.
"Moving through the weekend we are not expecting the fire to take a run where it will travel a significant distance.
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"There are still areas of un-contained fire so firefighters will work to contain those areas and bring them to containment lines where we can manage them."
He said this weekend they wanted to back burn to bring the fires to containment lines where they could be managed.
Fingal's Mangana Road bushfire, which has burnt more than 11,000 hectares, remained at Advice Level and the Mount Malcolm bushfire, which has burnt 8010 hectares, had no alert level on Friday.
Mr Lowe said southwesterly winds were expected on Saturday morning before wind conditions would ease.
"Very low relative humidities every afternoon means the fire gets very active from 4pm through to about 11pm," he said.