The Northwest Bakes Again, but Relief May Be Coming for Some Areas

A heat wave that brought dangerously high temperatures near 110 degrees to some inland parts of Washington, Oregon and Idaho this weekend is forecast to recede for some areas early this week — but not in Boise, Idaho, where Sunday’s high of 108 degrees broke the daily record.

Parts of the three states, along with northern Nevada, encountered blistering heat once again on Sunday, the continuation of a hot July for the whole region, where extreme heat was linked to hundreds of deaths in 2021.

In Boise, Sunday’s high of 108 degrees also made it the 14th straight day with highs of 99 degrees or above in southern Idaho, said Les Colin, a senior forecaster at the National Weather Service office in Boise. On most of those days, the temperature was above 100.

One marker of how long the area has been broiling: The Boise Farmers Market closed early for the second Saturday in a row, to keep vendors safe in the heat.

Temperatures there will not drop significantly until the end of the week, according to forecasters. If forecasts hold, Thursday will be the 10th straight 100-degree day, a record for the number of consecutive days with triple-digit temperatures in the city.

In Spokane, Wash., the high reached 106 degrees on Sunday, and triple-digit temperatures are forecast to continue Monday. After that, a dry cold front is expected to bring cooler temperatures.