Queensland's ambulance service has issued a warning to residents in central and northern parts of the state to be on the alert, with another heatwave predicted to hit by this weekend.
Temperatures are set to climb to up to 10C above average by Sunday, with the mercury rising in many parts beginning on Thursday.
Places north of Rockhampton are expected to feel the brunt of the unseasonal heat, with the central Queensland due to hit 41C by Sunday.
Bureau of Meteorology forecaster David Crock said the temperatures were expected to last into next week.
"Definitely through Monday and Tuesday, Wednesday tends to ease off a bit," Mr Crock said.
"It's expected to be eight to 10 degrees above average for around three days in a row which is very notable."
Darren Pirie from QAS said with high temperatures people should take precautions against heatstroke.
"We've come out of a winter month and then its gets suddenly hotter, so it may take some people by surprise," he said.
"When you're out in the sun, maintain your hydration, look after your friends, put your sunscreen on, keep yourself covered, and if it's available to you be in the shade."
They're urging anyone doing manual labour to take heat precautions and frequent breaks.
They've also suggested anyone with pets to also ensure they have shade and lots of water available.
Australian Associated Press