‘Heat dome’ in Pacific north-west breaks records as Portland braces for 115F

Seattle, Portland and other cities broke records over the weekend and face even higher temperatures

Seattle, Portland and other cities in the Pacific north-west broke all-time heat records over the weekend, with temperatures soaring well above 100F (37.8C).

But forecasters said Monday could be even worse, with the mercury possibly hitting 110F (43C) in Seattle and 115F (46C) in Portland. The high temperatures could continue on Tuesday in some areas.