Ottawa faces week-long 30 C heatwave starting June 28
Ottawa faces week-long 30 C heatwave starting June 28

Ottawa is bracing for a week-long stretch of 30 C heat beginning June 28, 2026, as reported by CTV News Ottawa. The prolonged heatwave is expected to push temperatures into the low 30s Celsius, prompting residents to seek relief at local beaches and cooling centers.

Heatwave Details and Duration

The forecast indicates that temperatures will reach or exceed 30 C each day from Sunday, June 28, through the following weekend. Environment Canada has not yet issued a heat warning, but the sustained high temperatures are likely to increase the risk of heat-related illnesses. Swimmers at Britannia Beach were already taking advantage of the Ottawa River to cool off on Sunday, July 6, 2025, as seen in a photo by Josh Marano of CTV News Ottawa.

Impact on Residents and Precautions

Health officials advise residents to stay hydrated, avoid strenuous outdoor activities during peak heat hours, and check on vulnerable neighbors. The city of Ottawa typically opens cooling centers and extends pool hours during extreme heat events. Public health warnings emphasize that prolonged exposure to 30 C heat can lead to heat exhaustion or heat stroke, especially for seniors, children, and those with chronic conditions.

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Related Weather Events Across Canada

Meanwhile, other parts of Canada are also experiencing severe weather. Edmonton crews responded to nearly 300 calls for drainage as the city saw its second weekend of rain. A washout closed Highway 21 north of Sherwood Park. In southern Saskatchewan, a severe thunderstorm and tornado watch were in place. These contrasting conditions highlight the variability of summer weather across the country.

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