scorcher
From Longman Dictionary of Contemporary Englishscorcherscorch‧er /ˈskɔːtʃə $ ˈskɔːrtʃər/ noun [countable usually singular] informal HOTan extremely hot day It was a scorcher of a day.Examples from the Corpusscorcher• Today's going to be a scorcher.• The Monday had been a proper scorcher.• A real scorcher of a game and one of Brian Horton's best wins at the Manor.