Environment Canada has issued a heat warning for parts of Muskoka and Parry Sound.
Areas affected include Bracebridge, Gravenhurst, Huntsville, Baysville, Port Carling, Port Severn, Parry Sound, Rosseau and Killbear Park. Forecasters are calling for hot and humid temperatures starting Tuesday and lasting until Thursday.
Nighttime lows are expected to only drop to 19 and 21 degrees. There is a risk of thunderstorms this week, which could bring some cooler temperatures.
Meteorologists expect the hot and humid conditions to disappear by Friday.
