US Pacific north-west may see triple-digit temperatures as heatwave continues

Climate change is fueling longer heatwaves in the region, where weeklong heat spells are historically rare according to climate experts

Heatwave duration records could be broken in the US Pacific north-west this week, as temperatures near triple digits are forecast to extend into the weekend.

For the next several days through Saturday we're going to be within a few degrees of 100F every day," said Colby Neuman, a meteorologist for the National Weather Service (NWS) in Portland, Oregon.