Portland’s all-time high temperature record fell Monday for a third consecutive day.
The high temperature at Portland International Airport reached 116 degrees by around 4 p.m., according to the National Weather Service.
Monday’s record-setting temperatures broke Sunday’s record-setting high of 112 degrees. Sunday’s high had broken the 108 degree record set Saturday, which broke the previous high of 107, first set in 1965.
The heat wave began Friday, when a ridge of high pressure moved over the Pacific Northwest. With high pressure in the atmosphere, air is forced down, compressing it and warming it in a phenomenon known as subsidence. That warm air is then trapped in place by the high pressure in what is known, somewhat forbiddingly, as a heat dome.
While the heat is expected to subside somewhat Tuesday, the rest of the week will remain sunny and warm.
Salem also saw a record high Monday, hitting 117 — the warmest temperature since the city started keeping weather records in 1890. That surpassed the city’s record-high of 113 set Sunday.
Eugene, Roseburg and The Dalles all recorded all-time high temperatures Sunday, and more records are likely to fall again throughout the state Monday. We’ll update this post with information from the National Weather Service about historic highs, as the hot spell continues.
PORTLAND INTERNATIONAL AIRPORT
High temperature, Saturday, June 26
Record: 102 degrees, set in 2006
Forecast: 106 degrees
Broken: Yes (108)
High temperature, Sunday, June 27
Record: 98 degrees, set in 2000
Forecast: 112 degrees
Broken: Yes (112).
High temperature, Monday, June 28
Record: 100 degrees, set in 2008
Forecast: 114 degrees
Broken: Yes (116)
High temperature in June
Record: 102 degrees, set June 26, 2006
Broken: Yes (116, Monday)
All-time high temperature
Record: 107 degrees, set Aug. 8 and 10, 1981, and July 30, 1965
Broken: Yes (115, Monday)
Longest stretch of 100 degree days in June
Record: 2 days, set in 2006
Broken: 3 days, set Saturday through Monday.
All-time longest stretch of 100 degree days
Record: 5 days, set July 13-17, 1941
Broken: TBD
OTHER RECORDS THROUGHOUT THE PACIFIC NORTHWEST
Salem
June high temperature: 105 degrees
Broken: Yes (117, Monday)
All-time high temperature: 108 degrees, first set in 1927
Broken: Yes (117, Monday)
Bend
June high temperature: 100 degrees, set in 1926
Broken: Yes (108, Monday)
All-time high temperature: 106 degrees, set in 1916
Broken: Yes (108, Monday)
Pendleton
June high temperature: 109 degrees, set in 2015
Broken: Yes (112, Sunday)
All-time high temperature: 113 degrees
Broken: No
The Dalles
June high temperature: 108 degrees, set in 2015
Broken: Yes (118, Monday)
All-time high temperature: 111 degrees
Broken: Yes (118, Monday)
Redmond
June high temperature: 102 degrees, set in 2017
Broken: Yes (108, Sunday)
All-time high temperature: 108 degrees, set in 1972
Broken: Tied
Roseburg
June high temperature: 102 degrees, set in 2006
Broken: Yes (105, Saturday)
All-time high temperature: 109 degrees, set in 2020
Broken: Yes (113, Sunday)
- Kale Williams, Kristi Turnquist, Ardeshir Tabrizian and Andre Meunier contributed to this report.