A HIGH fire danger, chance of thunderstorms and blistering temperatures are in line for Ipswich this week.
Temperatures are expected to peak at 38 degrees on Sunday and 36 on Saturday as a trough moving through from the west brings a gust of warm air.
Sunday's high is just off the September record for the city, a sweltering 39.2 degrees in 1941. It is also 13 degrees above the average for the month.
They follow a potential thunderstorm on Friday.
Bureau of Meteorology forecaster Jim Richardson said gusty winds and warm air meant there was a high fire danger late in the week.
He said there would be an elevated fire risk due to the winds ahead of the trough.
Maximum temperatures on Wednesday will be 29 degrees, 28 on Thursday and 32 on Friday.