Ottawa residents can expect today to be the hottest day of the current stretch, as a heat wave gripping Ontario reaches its peak before conditions gradually ease. The capital is right in the thick of it, with high temperatures and humidity combining to push the humidex well into the mid-to-high 30s across the region.
What's Happening
The heat wave has been building across the province for several days, and today marks the high point before a cooldown begins to move in. According to reporting from The Globe and Mail, temperatures are expected to even out in other parts of the country, including Manitoba, as the system that's been parked over Ontario starts to shift. For Ottawa, that means residents should brace for one more scorcher before relief arrives.
Why It Matters for Ottawa
Ottawa's mix of humidity from the Ottawa River and Rideau Canal corridor combined with urban heat in the downtown core tends to make heat waves feel even more intense here than the raw temperature suggests. The city's public health unit typically issues heat warnings when the humidex climbs above 40, and days like today are exactly the kind that trigger those alerts. Residents in neighbourhoods like Vanier, Lowertown, and the Byward Market — where there's less tree cover and more pavement — often bear the brunt of the extra warmth.
Ottawa Public Health has cooling centres set up at community centres and libraries across the city for anyone needing a break from the heat, and city pools and splash pads have been seeing longer lineups as families look for ways to beat the temperatures. The Rideau Canal and Ottawa River beaches, including Mooney's Bay, are also popular spots for locals trying to cool off.
Staying Safe
Health officials are reminding Ottawa residents to check in on elderly neighbours and anyone without air conditioning, stay hydrated, and avoid strenuous outdoor activity during the hottest part of the afternoon, typically between noon and 6 p.m. Pets are also at risk — sidewalks and pavement can get hot enough to burn paws, so it's best to keep walks to the early morning or evening.
Environment Canada's forecast suggests the worst of the heat should start to break by tomorrow as cooler air moves in from the west, bringing Ottawa's temperatures back down to more typical summer levels. Until then, it's a good day to stay in the shade, drink plenty of water, and take advantage of the city's cooling centres if needed.
Source: The Globe and Mail
