Tigard’s high temperature is expected to peak at 101 degrees Friday. In the southern Oregon town of Central Point, temps could rise to 110 degrees.

National Weather Service predictions are holding steady for a string of 100-degree days in Portland and elsewhere across the state as a Fourth of July heat wave charges through the region.

Track how temperatures will change across your city and across Oregon by zooming in and out on this Oregonian/OregonLive map created with data from the National Weather Service.

Portland could reach triple-digit temperatures for the next five days, National Weather Service meteorologist Chris Burling said Thursday.

If it does, each day will break the record highs and it will be just the second time Portland hits triple digits for five consecutive days. The last time that happened was in 1941, he said.

“It is absolutely not a certainty that will happen, but it is possible,” Burling said.

Cooling centers open in Multnomah and surrounding counties on Friday for people who need a respite from the high temperatures.

Read: Cooling centers to open Friday in Portland, Beaverton and Vancouver

Libraries will also reopen after a Fourth of July closure and some have extended their hours into the evening.