[Steve_Seattle]

“Excessive and oppressive heat across the Northwest will continue through at least the first half of the week where daytime highs will climb well into the 90s and low 100s."

That's pretty general. Summer heat in Eastern Washington is OFTEN in the 90s and 100s. On the West side, 90 degrees is rare - maybe three to five days a year - and 100 degrees is very rare.

[Spunky]

I live in the Tri-Cities. Pasco, Kennewick, Richland. Yes we get temps in this range sometime during the summer, but it hasn’t gotten up to 115 degrees in many years. What IS unusual about this is it has NEVER lasted this long. Usually a nine day spell at the most then it cools down. This is going on way beyond that.