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Forecast of the continental United States Forecast of the continental United States. Updates daily. Last issued on July 8, 2026.
\nCourtesy of National Weather Service, Climate Prediction Center <\/p>\n
In an interview with CTVNews.ca, retired Environment Canada\u2019s senior climatologist David Phillips said Canadians have already seen how the weather pattern can spread beyond the U.S.<\/p>\n
\u201cIt\u2019s like putting a lid over a large section of geography, and this time it\u2019s going to be over the western part of the United States and it\u2019s going to again seep into Canada.\u201d<\/p>\n
Phillips noted southern Prairie communities are expected to feel the greatest impact, saying the event is notable because many Prairie regions have not experienced prolonged heat since a brief warm spell in late May.<\/p>\n
\u201cAll week next week looks like lots of sunshine, warm temperatures… temperatures that could be five to seven, in some cases maybe even reaching 10 degrees warmer than it should be for this time of the year.\u201d<\/p>\n
The pattern follows an early July heat wave that affected parts of Ontario, Quebec and Atlantic Canada before shifting westward.<\/p>\n
Chief meteorologist Kelsey McEwen told CTVNews.ca the developing weather pattern marks a dramatic change from how July began across Canada.<\/p>\n
\u201cWe had a really hot July in the eastern half of the country and cooler than average temperatures in the West, and that\u2019s about to do a total flip-flop as we head toward the middle of the month.\u201d<\/p>\n
She said the same high pressure system driving the U.S. heat will also influence Canadian weather.<\/p>\n
\u201cWeather doesn\u2019t know international border. So, that same high pressure sits over Western Canada as well.\u201d<\/p>\n
The system is expected to push the jet stream farther north, allowing warmer air to build over Alberta and parts of Saskatchewan while cooler than normal conditions develop in parts of Northern Ontario.<\/p>\n
Wildfire concerns<\/p>\n
McEwen said the prolonged stretch of hot, dry weather could create additional challenges in regions already dealing with active wildfires.<\/p>\n
\u201cThat high pressure will mean sinking air, which further enhances the temperatures to a higher degree, plus, it inhibits cloud development and therefore inhibits rain. So this does become problematic for areas already that are quite dry.\u201d<\/p>\n
She noted the expected heat will be the first sustained period of summer-like temperatures for some western communities this season.<\/p>\n
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Fort McMurray wildfire Heat waves are seen as cars and trucks try and get past a wild fire 16km south of Fort McMurray on highway 63 Friday, May 6, 2016. THE CANADIAN PRESS\/Jonathan Hayward <\/p>\n