"Much of the country is used to occasional 100-degree days. Seattle, which has had just three in the past 123 years, is not.

So unaccustomed is Seattle to scorching heat that, in 2015, only one-third of the housing units in its metropolitan area had air-conditioning.

That’s going to make this week dangerous.

The National Weather Service is predicting 'widespread record highs' as a heat wave engulfs the Pacific Northwest. An excessive heat warning is in effect from 2 p.m. on Tuesday through 9 p.m. on Friday. Seattleites can expect temperatures in the mid-80s to lower 90s on Tuesday. Wednesday will be in the 90s. And that three-digit barrier: Thursday may break it, with highs potentially 'near 104.'"

Maggie Astor reports for the New York Times August 1, 2017. [2]