UPDATE: A FIRE burning out of control in hilly terrain near Violet Town in north eastern Victoria could burn for days possibly weeks.

Shepparton Incident Control Centre spokesmen Graeme Macartney told Weekly Times Now the fire was about 2000ha in size and was being tackled from the air as well as by CFA and Department of Sustainability ground crews.

He said the rough hilly terrain was extremely difficult for crews to put containment lines in place.

"Bulldozers are working to achieve this. We can't get our normal appliances in to contain the fire. We are relying on aerial to put it out," Mr Macartney said.

Six aircraft have been allocated to the fire.

He said a community meeting at Violet Town this morning was told it was going to a long, hard campaign.

"At this stage it depends on the weather. We believe it's probably days, if not weeks."

At Watch and Act is current for the area. The fire hasn't destroyed any private property at this stage.

The Hume Highway remains open and drivers are being told to slow down due to smoke.

The Watch and Act message is for south of the Hume Freeway and bounded by Harry's Creek Rd to the west, Boho Church Rd to the east, south of the Hume Freeway and the area North of School Rd.

The fire is most active on Upper Boho Rd and Sawpit Gully Rd.

A community meeting will be held tomorrow at 11am at the Violet Town Community Centre, Cowslip St.

A 60-year-old man was burned on the legs as he fought the original grassfire yesterday.

Ambulance Victoria spokesman John Mullin said the man suffered burns to about 18 per cent of his lower body, but after being treated by paramedics he refused to go to hospital.

In other fire news, crews are continuing blacking out operations around Harrietville.

Thunderstorms are tipped for the region this afternoon and crews are hoping rain will hit the 3180ha fire which is in remote areas of the High Country.

The Great Alpine Rd and the Dargo High Plains Rd have re-opened but drivers are being warned emergency vehicles are using roads in the area and access depends on fire activity.

In Gippsland, the Aberfeldy-Donnellys fire behaviour is easing along with weather conditions.

The fire has burnt 69,800ha and firefighters are tackling two hot spots south of Plant Track.