Fire conditions are forecast to worsen again on Friday and Saturday when a dry wind is expected to blow across parts of southern Queensland, raising the fire danger rating from "high" to "very high".

Key points: The Bureau of Meteorology is forecasting fire conditions to improve on Thursday, before deteriorating again on Friday

The Bureau of Meteorology is forecasting fire conditions to improve on Thursday, before deteriorating again on Friday Temperatures are expected to hit 30C on Friday, as well as next week

Temperatures are expected to hit 30C on Friday, as well as next week Over the weekend, BOM says there will be no rain at all in the whole of Queensland

Dozens of fires are still burning across the state.

While none pose an immediate threat, Queensland Fire and Emergency Services (QFES) Deputy Commissioner Neil Gallant said the Mount Archer fire at Rockhampton and the Gold Coast hinterland fire were still uncontained.

Mr Gallant said about 100 firefighters were arriving from interstate today to relieve Queensland crews that had been working "day and night for a week".

Fresh firefighters from Brisbane and surrounds relieve exhausted Peregian Beach crews yesterday. ( AAP: Rob Maccoll )

There was a short reprieve for firefighters yesterday, and that is expected to continue today.

Lower temperatures, a lighter onshore wind, and increased humidity are expected to bring moisture in the air today.

Bureau of Meteorology (BOM) forecaster Livio Regano said a wind change on Friday would bring a dry, south-westerly to South East Queensland and the Darling Downs and temperatures could reach 30 degrees Celsius.

Residents are returning to Peregian where at least one house was destroyed. ( AAP: Rob Maccoll )

"That's going to raise the fire danger rating, at this stage we're anticipating it will be very high, but probably not reaching warning category," he said.

"[Friday and Saturday] are the two worst days.

"Even on the Darling Downs it's going to get awfully high but not like it was.

Scores of fires are burning across the state, but none pose any immediate threat. ( Supplied: QFES )

"The winds won't get as strong and it's unlikely our fire danger ratings will get into the category for which we will need to reissue another warning."

Mr Gallant said conditions would not become as bad as last Friday, but fires could quickly escalate.

"Winds are our enemy," he said.

Exhausted firefighters will be given a short reprieve before conditions worsen again in the coming days. ( Supplied: Queensland Fire and Emergency Service )

"With the very hot, dry weather we've had over the last couple of weeks, all of the vegetation is very, very dry.

"Any fires that start with any wind will run quite hard."

Mr Regano said there was no rain for the foreseeable future.

"It's such a terrible season and we haven't had rain for so long, until it rains every time there's any wind at all and the temperatures go above average, it's time to be concerned.



"That's the bottom line."

There was a chance that severe to extreme fire conditions could return next week.

BOM senior forecaster Gabriel Branescu said it was too early to say where and when those conditions would occur but it was likely to be Tuesday or Wednesday.

Temperatures again could hit above 30C.

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"It looks like even hotter temperatures on the way, in the whole southern part of the state, [which] will cause fire dangers to maybe even go back to severe and extreme in the southern inland," Mr Branescu said.

Acting Fire Commissioner Mike Wassing said he was enormously proud of the QFES and 164 firefighters from interstate.

"The fact that nobody was injured, nobody lost their lives, is extraordinary," he said.

But he cautioned the bushfire danger would continue.

"This is not an ordinary bushfire season," he said.

"What we've seen is extraordinary dry conditions with the extremes of high winds and high temperatures.

"This will continue for weeks and potentially months. There is no outlook for rain."

Teens charged over alleged deliberately lit fire

Meanwhile, two teenagers have been charged over an alleged deliberately lit fire that destroyed bushland and forced residents to evacuate their homes in the Peregian area on the Sunshine Coast on Monday.

A 14-year-old boy from Peregian Springs and a 15-year-old girl from Coolum Beach girl were charged with endangering particular property by fire.

Police said investigations were ongoing and it was not clear if more people would be charged.

Commissioner Katarina Carroll said they were also looking into more than 20 other blazes as part of the new taskforce to crack down on suspicious behaviour.

"Thirteen have been obviously as a result of either careless, deliberate, sometimes just reckless and accidental fires that have started," she said.

"We have charged two adults, and 13 juveniles have been dealt with as well."

She has urged parents to speak with the children about the dangers of lighting fires.

Residents watch the bushfire raging behind Peregian Springs houses on September 9. ( Supplied: Julie Bristow )

Commissioner Carroll said she understood people were angry.

"I ask the community, please let the police deal with that," she said.

"We are working very closely with the children and the families involved.

"Of course I'm concerned about vigilantism — people shouldn't be taking the law into their own hands … the public would not have all the facts before them, but we do."

Bushfire burns behind homes at Peregian Springs on September 9. ( Supplied: Daniel Mcardle )

Queensland Bushfire Appeal launched

Premier Annastacia Palaszczuk travelled to the Peregian Springs fire zone today, having cut short an overseas mission to Switzerland to push for an Olympic Games in Queensland.

She thanked emergency crews and launched the Queensland Bushfire Appeal, with a $100,000 donation from the State Government.

"I would ask Queenslanders to please think about giving generously," Ms Palaszczuk said.

Grants were also announced late on Thursday for people affected by bushfires in Peregian Beach, Marcus Beach, Peregian Springs, Peregian Breeze Estate, and Weyba Downs.

They can access $180 per person, to a maximum of $900 for a family of five or more.