Environment Canada says the extreme heat baking much of the province in recent days will continue through tomorrow.
In most parts of southern Ontario, temperatures today and tomorrow are forecast to climb into the low to mid 30’s.
Humidex values will also increase, reaching values near 40 on both days.
Overnight low temperatures are expected to be in the low 20’s or in the high teens — providing little or no relief from the heat.
A cool down is expected by Friday as a cold front passes through the province.