Extreme temperatures are returning to the 6ix. Another heatwave in Toronto is expected to bring daytime highs that feel like 40 C over the next several days. According to a new warning from Environment Canada, you better watch what you eat because even your diet could make you sweaty.\nAccording to Environment Canada, Torontonians should stick to “cool, light meals” to avoid feeling even worse in this brutal weather.\nSo if you were planning on shoving your face with pizza, you might want to swap it for a salad instead.\nEditor's Choice: The AGO Is Giving Out Free 1-Year Passes To Nurses, Bus Drivers & Grocery Workers\nMeteorologist Kelly Sonnenburg told Narcity that, “As temperatures climb towards 30°C this weekend, it's important to be conscious of staying well hydrated if you are planning on spending extended periods of time outdoors."\n"On top of drinking plenty of water, hydrating foods to think about including in your diet this weekend include cucumbers, watermelon and surprisingly, bananas, which are filled with electrolytes like potassium to help your body create energy.“\nA tropical air mass is going to hit Toronto today with heat and humidity until at least Monday, states the weather company.\nThe muggy forecast cautions residents that they will receive little relief from the sweltering temperatures. However, it’s worth noting the heatwave will dissipate slightly during the evenings.\n“The heat and humidity will last through the weekend to at least Monday. Afternoon temperatures will reach the low to mid-thirties. Humidex values will reach 40 each afternoon as well. Temperatures overnight will remain in the low to mid-twenties, providing little relief from the heat,” read a statement from Environment Canada.\nIn fact, it will be so hot this Friday that the weather statement is also warning of poor air quality.\n“Hot and humid air can also bring deteriorating air quality and can result in the Air Quality Health Index approaching the high-risk category. Slightly cooler and less humid conditions may arrive on Tuesday,” the alert adds.\nEnvironment Canada is cautioning residents to watch out for symptoms of heat illness, which include swelling, fainting, exhaustion, heatstroke, cramps, and rash.\nIt’s also important to remember never to leave young children or pets inside a parked vehicle.\n“Heat warnings are issued when very high temperature or humidity conditions are expected to pose an elevated risk of heat illnesses, such as heat stroke or heat exhaustion,” the statement concludes.\nAccording to The Weather Network, temperatures in Toronto will feel like they are above 30 C all the way until the end of next week.