Why it's unlikely another extreme heat wave will hit Portland this summer KGW Staff Replay Video UP NEXT Portland has broken the all-time record high temperature three days in a row as a historic heat wave . Saturday saw 108 degrees, Sunday the temperature was 112 degrees, Monday A lot of people are wondering what's next for the months ahead and could this be a sign of hotter temperatures to come? The answer is.. it's doubtful the region sees this kind of extreme heat again this summer. What the Pacific Northwest is experiencing is unprecedented and extreme. Almost by definition, these events are very rare. It's why it’s unlikely we would see this pattern repeat again this summer. Nothing is impossible, but it’s highly unlikely.