Severe bushfire conditions have been declared across six South Australian districts with hot to very hot conditions forecast across the state.
The warnings apply to the west coast, Eastern Eyre Peninsula, mid north, Mount Lofty Ranges, Yorke Peninsula and lower southeast.
The Country Fire Service says total fire bans will be in place for those regions on Thursday.
Adelaide is forecast to have a top temperature of 35C with the mercury to climb into the low 40s in some regional centres.
"Where total fire bans have been declared, very hazardous fire weather conditions are predicted," the CFS said.
"The CFS recommends that you implement your bushfire survival plan."
The extreme conditions will spread further south over the weekend with Adelaide expecting 39C on Saturday and 41C on Sunday.
The Bureau of Meteorology says a milder change will move across the state late on Sunday.
