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Canada braces for western floods, eastern heat wave on national holiday

By Thomson Reuters Jun 30, 2026 | 2:07 PM

By Amanda Stephenson

CALGARY, June 30 (Reuters) – From flooding to extreme heat, Canadians on both sides of the country are grappling with wild weather ahead ​of Wednesday’s Canada Day holiday.

In Toronto and other ‌parts of Eastern Canada, dangerously hot conditions on Tuesday prompted Environment Canada to issue a heat warning and urge residents to check on the welfare of older adults and people living ‌alone.

Temperatures ​in parts of Ontario and Quebec ⁠are expected to reach ⁠34 to 37 degrees Celsius (93 to 99 degrees Fahrenheit) on Wednesday and Thursday, coinciding with the holiday and the last World Cup game in Toronto. In ​that city, the heat wave has prompted officials to establish mobile drinking water stations in parks and ⁠to extend swimming pool hours.

In ⁠Western Canada, heavy rainfall has caused flooding ​and dangerously high stream conditions in parts of Alberta, prompting ​evacuation alerts and stranding up to 1,500 campers ‌in the popular recreation area of Kananaskis on Monday due to flooding-related road closures.

In Calgary, where the Calgary Stampede is set to begin on Friday, flows on ⁠the Bow and Elbow rivers are expected to remain high through Wednesday. Smoke from wildfires in northern Saskatchewan also moved ⁠into the city ‌this week, prompting officials to issue ⁠an air quality warning.

Significant rainfall is forecast ​for ‌parts of eastern Saskatchewan and western Manitoba ​over the ⁠next few days. In parts of Manitoba, officials have warned that water levels on lakes and reservoirs could rise by 1 to 3 feet (0.3 to 0.9 meters), and overland flooding is possible.

(Reporting by Amanda Stephenson in CalgaryEditing ​by Rod Nickel)