Here comes the heat again.

Environment Canada has issued a heat warning for Toronto and much of southern Ontario.

It’s going to be a hot couple of days in Toronto, Vaughn, Richmond Hill, Mississauga, Markham, Oshawa and Hamilton.

Temperatures are expected to be near or above 31 C Tuesday and Wednesday,

People – especially young children, the elderly, and those with chronic illnesses – are advised to take precautions.  Drink plenty of liquids and avoid working in the heat.

An overnight low of 21 C Tuesday may provide some relief.