UPDATE: FIRE crews in Gippsland and Victoria's alpine region are strengthening control lines before tomorrow's increased fire danger.

A state control centre spokesman said the state's two major bushfires have been quite active yesterday, with some small spot fires over control lines.

Lighter winds today will give fire crews a chance to prepare for tomorrow, when there will be a very high fire danger for most of the state and a severe fire risk in the north central and north east regions.

"When we get a quieter day like this it allows you to do additional work to try and manage the fire for the more difficult days coming up," the spokesman said.

"They'll continue to work on control lines and containment and there will be crews that are taking a rest."

A CFA watch and act warning is still in place for the out-of-control Harrietville blaze burning near Hotham Heights and Dinner Plain.

Residents have been told to monitor the fast-moving bushfire, which is about 10,210ha in size.

There are road closures in Harrietville and the state control centre has warned it is not safe to enter the area.

"We're recommending that campers or anyone thinking of going up to that area are better off looking at alternatives," the spokesperson said.

Victoria's fire services commissioner Craig Lapsley yesterday said the week of hot days would lead to extreme and severe fire danger - "traditional fire weather" - in parts of Victoria on Saturday.