Toronto Sizzles Under Intense Heat Warning as Humidex Nears 40

Toronto Sizzles Under Intense Heat Warning as Humidex Nears 40

Toronto Sizzles Under Intense Heat Warning as Humidex Nears 40

Hey everyone, just a heads-up — Toronto is under a heat warning this weekend, and it’s no joke. Environment Canada has issued an alert for the city and the entire GTA, warning that temperatures are expected to soar into the low-to-mid 30s Celsius, but with the humidity, it’s going to feel more like a sweltering 40 degrees. That kind of heat isn’t just uncomfortable — it can be dangerous.

It all kicks off Saturday, right after a relatively seasonal and sunny Friday. On Saturday, we’re looking at a high of about 31°C, but once the humidex kicks in, the air will feel more like 41°C. There’s also a chance of afternoon showers and possibly a thunderstorm. By evening, it cools only slightly to around 22°C, which still offers little relief. Sunday, unfortunately, doesn’t bring much of a break — it’s expected to be the hottest day, reaching 32°C with humidity pushing the “feels like” temperature back into the 40s. The chance of rain increases into the evening with a 40% likelihood of showers.

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The real issue here is that the heat sticks around even after the sun goes down. Overnight lows are only expected to dip to the low-to-mid 20s, which means your body won’t get a chance to recover from the daytime heat. That can be particularly risky for seniors, people with chronic illnesses, and anyone without air conditioning.

Health officials and Environment Canada are urging everyone to take precautions. Stay hydrated — drink water regularly, even if you don’t feel thirsty. Try to stay indoors during the hottest parts of the day (11 a.m. to 4 p.m.), and if you must be outside, wear light, loose-fitting clothes, a wide-brimmed hat, and sunscreen. Cooling down your body with a damp cloth or spray bottle can help, and finding an air-conditioned space or shaded area is key.

Also, check on those who might be more vulnerable — older adults, young children, people living alone, or anyone with limited mobility. Heat exhaustion can creep up quickly and includes symptoms like dizziness, nausea, headache, fatigue, and dark-colored urine. If someone shows signs of heat stroke — such as red, hot skin, confusion, or loss of consciousness — call 911 immediately.

This is the second heat wave to hit Toronto in just a couple of weeks. We already saw a record-breaking temperature of 36°C on June 23, the hottest since 1983. So, the trend is clear — these summer extremes are becoming more common, and we have to take them seriously.

Good news: more seasonal temperatures are expected next week. Monday might still feel sticky with a humidex in the 30s, but after that, we should see daytime highs settle back into the mid-20s. Until then, stay safe, stay cool, and don’t underestimate the heat.

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