Starting Saturday, Hamilton will face its 6th heat warning of the summer

CBC

09-08-2025

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Environment Canada has issued Hamilton's sixth heat warning of the summer, with temperatures expected to reach 33 C by Sunday. There were four, all of last year.
According to Environment Canada meteorologist Crawford Luke, the city is experiencing significantly warmer conditions this season — July averaged 22.4°C, compared to the historical average of 20.9°C, and June came in at 19.7°C, about 1.2 degrees higher than normal.
"There's still a lot of summer left," said Luke, adding that Hamilton could see another one or two heat warnings before the season ends.
The multi-day heat event begins Saturday, with daytime highs above 30 C and overnight lows near 23 C, offering little relief from the heat. The humidex values are expected to range between 35 and 40, according to Environment Canada.
"Slightly cooler temperatures are expected by the middle of next week, bringing an end to this heat event," said the media release from Environment Canada. Starting midweek, there is also a slight chance of showers.
The warning also mentioned that heat stroke can include symptoms of red and hot skin, dizziness, nausea, confusion and change in consciousness."
If you think a loved one has heat stroke, "While you wait for medical attention, try to cool the person by moving them to a cool place, removing extra clothing, applying cold water or ice packs around the body," and make sure to stay hydrated, even before you feel thirsty.
"Close blinds, or shades and open windows if outside is cooler than inside," said Environment Canada adding that turning on air conditioning, using a fan, or moving to a cooler area of your living space. "If your living space is hot, move to a cool public space such as a cooling centre, community centre, library or shaded park."