The Pacific Northwest was already gearing up for a sweltering weekend, with temps in Seattle set to be higher than those in Cairo, but it's not the only part of the US that's due to be hit with soaring digits. CNN notes the "dueling heat waves" that will envelop both coasts, with the Northeast set to see the brunt of its temperature spike Monday through Wednesday. "A heat wave appears to develop and persist from the Northeast to the mid-Atlantic, where afternoon temperatures are forecast to peak well into the 90s away from the immediate coasts during next week," the Weather Prediction Center notes. The heat is expected to extend well north of the US mainland, with heat warnings in effect for much of Alberta and British Columbia, with some parts of Canada expected to see temperatures in the triple digits by the middle of next week.
In Fort Good Hope, up near the Arctic Circle, temperatures are forecast to hit the mid-80s. Meanwhile, back in the Pacific Northwest, cities like Seattle and Portland, Ore., trapped under a "heat dome," are bracing for record-breaking temperatures that may be 30 degrees above normal for this time of year, reports the AP. Portland could reach 113 degrees on Sunday, while temps in Seattle may hit 105 degrees on Monday. The latter city has only reached triple digits twice, a state climatologist tells ABC News. Experts say climate change is likely tied to the temperature spike. Government officials in Washington and Oregon have lifted COVID capacity limits for places with air conditioning, including cooling centers, shopping malls, and movie theaters, while residents not used to this kind of heat have been making runs to see if they can snag an AC unit of their own. (Read more heat wave stories.)