As of 5:35 a.m. PDT Monday, Portland International Airport (KPDX) was starting the day cool and calm, with clear skies and a temperature near 61°F. That comfortable morning is not sticking around for long, with inland neighborhoods expected to heat up into the upper 80s and a high near 89°F by mid to late afternoon.
What To Expect This Afternoon
High pressure is setting up the warmest day of the week, pushing inland temperatures into the upper 80s and creating a localized Moderate Heat Risk across parts of the inner Portland metro, the Columbia River Gorge and the Upper Hood River Valley. People without air conditioning or anyone working outside should take it easy and plan for shade and water. Overnight lows are forecast to drop into the upper 40s to mid 50s, which should bring some decent relief once the sun goes down.
Out on the water, Small Craft Advisories remain posted this morning for portions of the coastal and outer waters. Seas are running around 6 to 9 feet with northerly gusts that can make conditions hazardous for small boats, so mariners are urged to hold off on trips until conditions improve, according to the National Weather Service.
Cooling Centers And Safety
To help residents stay cool, Multnomah County has opened and listed cool spaces for anyone who needs a break from the heat. The county has previously identified Bud Clark Commons (650 N.W. Irving St., Portland) and the Multnomah County East Building (600 N.E. 8th St., Gresham) as dedicated daytime cooling sites. For the latest locations and hours, or to get help with transportation, check county updates or call 2-1-1, per Multnomah County.
Health officials urge residents to stay hydrated, skip or limit strenuous activity during the hottest part of the afternoon, and remember that rivers and lakes are still cold. Even on a warm day, cold-water shock and swift currents can turn a quick dip into a dangerous situation.
Before heading outside, check official forecasts for the latest conditions on land and water. If you can, plan outdoor activities for the cooler morning or evening hours and bring plenty of water if you will be active. If you see someone showing signs of heat distress, call 9-1-1 and get medical help right away.
