A heat warning is in effect for Saugane Shores and southern Bruce County as well as southern Gray County.
Environment Canada says the multi-day heat event is starting today and could continue through Thursday.
The maximum temperature is expected to be in the high 20s to low 30s.
The humidex is expected in the high 30s to low 40s.
Areas near lakes can be slightly cooler than inland areas.
They are reminding everyone to never leave people or pets unattended inside a parked vehicle.
Environment Canada says that hot and humid air can also lead to a deterioration in air quality and result in the Air Quality Health Index reaching the high risk category.
The risk is higher for young children, pregnant women, older adults, people with chronic diseases, and people who work or exercise outdoors.
Environment Canada says to keep an eye out for the effects of heat illness: swelling, rash, cramps, fainting, heat exhaustion, heat stroke and worsening of some health conditions, they say drink plenty of water before you get thirsty and cool down Stay in place. Place.
A heat warning is issued when very high temperature or humidity conditions increase the risk of heat illnesses, such as heat stroke or heat exhaustion.