Ontario is expected to start feeling the worst of its latest heat wave today as forecasters predict temperatures to reach the mid- to high 30s, and humidex readings near the mid-40s.
Much of northern Ontario spent Monday under a severe orange warning, spanning areas from Kenora and Thunder Bay to Fort Hope and Timmins.
Forecasters said those areas could see highs of 36 C, with the humidex making it feel as hot as 42 C, before letting up later this week.
Less severe yellow warnings remain in effect for southern Ontario, including Windsor, Toronto, North Bay and east to Ottawa and Cornwall, with similar temperature and even higher humidex forecasts….