Watch: Rod Hill hosted a live chat Thursday about the heat wave

PORTLAND, Ore. -- The Portland metro area hit 100 degrees for the second day in a row on Saturday, but the heat wave should be over beginning Sunday.

The high for Portland on Saturday was 100, exactly the same as Friday. It was 99 degrees on Thursday to make a run of three straight days with record-breaking heat.

Record-breaking temperatures throughout Oregon on August 19
Record-breaking temperatures throughout Oregon on August 19

There was a significant cooldown on the coast after Seaside and Garibaldi hit 100 degrees on Friday. The development of fog and low clouds contributed to the drop in temperature along the coast on Saturday.

The cooldown should come to the metro area on Sunday as KGW weatheman Brian Brennan expects temperatures in the mid-80s. More relief is expected Monday as temperatures may not reach 80 degrees.

Forecast | Weather Cams

KGW Meteorologist Rod Hill added that the metro often sees a few 90-degree days in September, before fall temperatures breakthrough.

"Keep an eye on the forecast and plan outdoor activities this week around the extreme heat: Lots of water, sunscreen and wearing a hat are always recommended when temperatures soar," Hill said.

Rod Hill's summer outlook

Cooling centers opening

Cooling centers were available Thursday-Saturday only for seniors and people with disabilities or other physical conditions.

Cooling center locations and hours in Multnomah County:

Multnomah County Walnut Park Building, 5325 NE MLK Jr. Blvd., Portland

  • Thurs., Aug. 18, 5 p.m. to 8 p.m.
  • Fri., Aug. 19, 5 p.m. to 8 p.m.
  • Sat., Aug. 20, 2 p.m. to 8 p.m.

Multnomah County East Building, 600 NE 8th St., Gresham

  • Thurs., Aug. 18, 5 p.m. to 8 p.m.
  • Fri., Aug. 19, 5 p.m. to 8 p.m.
  • Sat., Aug. 20, 2 p.m. to 8 p.m.

Hollywood Senior Center, 1820 NE 40th Ave., Portland

  • Thurs., Aug. 18, 4:30 p.m. to 8 p.m.
  • Fri., Aug. 19, 4:30 p.m. to 8 p.m.
  • Sat., Aug. 20, 2 p.m. to 8 p.m.

Multnomah County encourages other citizens to seek out other cool places, such as libraries or the splash pad.

MAP: Places to stay cool in Multnomah County

Cooling centers in Clackamas County

Burn Bans

Counties throughout the Portland metro area have issued burn bans which include recreational fires.

Related: Burn bans in effect during heat wave