Qld heatwave continues this week

Queenslanders need to brace themselves for another week of extreme heat after a scorching weekend that saw the mercury climb above 40C in some places.

Areas reached 8 to ten degrees above average on Sunday, with outback Queensland towns like Birdsville and Thargomindah climbing above 44C while Brisbane peaked at 34C.

"There will a few more days yet. A lot of the areas won't cool down until the end of the week," a Bureau of Meteorology spokeswoman told AAP.

On Monday Brisbane is forecast at 34C, Surfers Paradise 36C, Birdsville 44C and Rockhampton 41C.

The heat has prompted concerns about the state's electricity supply, with Energy Minister Anthony Lynham assuring Queenslanders there's plenty of power.

"We still have significant reserves, we have enough reserve for between 750,000 and a million homes here in Queensland," Mr Lynham told reporters on Sunday.

Emergency services are reminding people not to wait until they are thirsty to drink water and to check on elderly relatives and neighbours.