Update: 11:45, Monday, August 25: Multnomah County announced it won't reopen cooling centers today, as temperatures have fallen below emergency thresholds. The forecast still predicts hot weather (low 90s) through Tuesday evening, so health officials advise people to maintain heat precautions, especially those particularly susceptible to heat-related illness. 

Update: Noon, Sunday, August 24: Multnomah County's heat emergency will extend through at least Monday morning. The two cooling centers will remain open Sunday from noon to 9 pm. Three county libraries (listed below) will also extend their hours of operation until 8 pm Sunday evening. 

Update: 4 pm, Saturday, August 23: The location of a cooling center in Portland has changed to Friendly House at 1737 NW 26th Ave.

Just a week and a half after the last one, another heat wave is hitting the Portland area. This time, temperatures are set to hit 100 degrees Friday, August 22, and Saturday will likely be even hotter. It's expected to cool down starting Sunday, but it'll be slow—forecasts predict temperatures will remain in the high 90s through the middle of next week, without much reprieve overnight. 

In response to the impending scorcher, Multnomah County has declared a state of emergency. Two cooling centers will continue operating Saturday, at the East County Health Center (600 NE 8th St, Gresham) and Friendly House in Northwest Portland (1737 NW 26th Ave). Note: The Portland location is a different center than the one announced previously.

The shelters will be open from noon until 9 pm Friday and Saturday, and pets are welcome. 

In addition, three county libraries (Downtown Portland's Central Library, outer Southeast Portland's Midland Library, and the Gresham Library) will remain open until 8 pm Friday for people seeking respite from the heat.

The Multnomah County Medical Examiner’s Office reported Sunday that it's investigating the possible heat-related death of a 56-year-old man in Northwest Portland. 

Prior to that, medical officials said they believe two people—a man and a woman—died in connection with last week's heat wave, which saw temperatures in the high 90s for three days in a row. Both of the people suspected to have died of heat-related causes were in their late 50s, but no other information has been provided. 

Heat-related deaths in Multnomah County have risen sharply along with climate change, as the crisis has caused summer extremes to be much hotter for longer periods of time. At least six people died from heat-related causes last summer, and nearly 70 people died during the record-breaking 2021 heat dome. Following the heat deaths, Multnomah County and the city of Portland say they've ramped up outreach to unhoused residents, who may not be aware of cooling resources, and created a program to provide energy-efficient air conditioners to others in need. The county has also sued Big Oil companies for their involvement in causing the 2021 heat dome, holding them responsible for the deaths. Still, many Portlanders aren't used to extremely hot weather, and many older apartment buildings don't have air conditioning. 

According to the county, people most susceptible of dying due to extreme heat are men over 50, who live alone without air conditioning. High temperatures are also particularly risky for people who must spend prolonged time outside, young children, pregnant people, and those with health conditions. Those who live outdoors also face high risk of heat-related illness or death. 

In response to the county's state of emergency, TriMet won't turn people away who are heading to or from a cooling space if they cannot pay their fare. The policy will be in effect Friday and Saturday from 11 am to 10 pm.

You can find a map of more local places to cool down here.