The Queen's Birthday public holiday and Tuesday could push October records, with top temperatures 10 to 12 degrees above average.
Queensland is set to scorch this week, with hot, dry and windy conditions increasing fire danger, particularly in the southeast.
The Bureau of Meteorology forecaster Kimba Wong says temperatures around the state are set to soar 10 to 12 degrees above the average.
"In Brisbane 36 degrees is the current forecast for Tuesday, and that will be the warmest October day since 2005 if it comes up," she says.