The Portland, Oregon metro area will enter an extreme heat warning this weekend, according to the National Weather Service.
The warning, issued on Tuesday, indicates dangerously hot conditions, with temperatures likely to reach 38 degrees Celsius, or 100 degrees Fahrenheit, from Sunday morning until Monday night.
Residents of the Portland metro area, which includes counties such as Clark, Multnomah, Clackamas, Skamania and Washington, need to take extra precautions as temperatures rise and the risk of heat-related health problems grows.
“Drink plenty of fluids, stay in a cool place during the heat of the day, avoid exposure to the sun and check on your relatives and neighbors,” recommended the National Weather Service (NWS). “For those without air conditioning, use fans to keep air circulating. Keep windows closed during the day and open at night unless air quality is compromised due to wildfire smoke.”
Authorities also advise that young children or pets should not be left alone in vehicles.
So far, Portland has only had one day with temperatures close to 32°C throughout 2026. The highs predicted for this weekend could mark the first heat wave above 38°C in the region.
The highest temperature ever recorded at Portland airport for a Sunday is 89 degrees Fahrenheit, reached in 1988. This milestone is expected to be surpassed by about ten degrees.
Drier skies in the Pacific Northwest and an ongoing warming trend contribute to the current scenario.
June 14 represents the last record maximum temperature below 32°C for the month in Portland. The expectation is for three to four days with temperatures at or above 32°C from Saturday.
All other record high temperatures for June in Portland are at 90 degrees Fahrenheit or higher. Data from the city’s airport dates back to approximately 1940.
A weather alert from KOIN 6 will be in effect for Sunday and Monday, when intense heat is expected to peak in the Pacific Northwest.