Heat warnings in place for 5 provinces, 1 territory  CTV NewsToronto under heat warnings for more than half the summer, putting city’s most vulnerable at risk  The Globe and MailHere’s when the heat wave will end in southern Ontario  INsaugaHeat warning in GTA expected to end Tuesday night: Environment Canada  CBC‘Excruciatingly hot’: Heat wave expected to end Wednesday ahead of ‘stellar’ long weekend  CP24