Another hot day is expected for Queensland and more records could be broken before a cool change comes during the weekend.

Records for September day heat were melted at 12 locations across the state's south-east on Thursday, with places between Warwick, Toowoomba, the Sunshine Coast and Logan experiencing conditions between 10 degrees and 14 degrees above average.

September heat records have tumbled across south-east Queensland. Credit:Harrison Saragossi

A fire ban was in place across the south-east and there were high to very high fire dangers across much of the state, the Queensland Fire and Emergency services warned.