Brisbane residents could look particularly bedraggled on Monday morning, after the city sweltered through its warmest night in more than a decade.

Forecaster Chris Joseph from the Bureau of Meteorology said Brisbane recorded a low of 26.5C on Sunday night.

"That's the warmest since 2004, and it also felt much warmer," he said.

"The apparent temperature was around 34 degrees with that almost 90 per cent humidity."