Portland woke up Sunday, June 28 under a blanket of gray, with a cool 55°F logged at Portland International Airport. Light rain showers are possible through the afternoon, with a high near 69°F on the way. Most spots will stay dry at any given time, but isolated spits and brief showers could pop up between 9 a.m. and 4 p.m.
Coast And Boaters
The National Weather Service has a Small Craft Advisory in effect through 11 p.m. PDT Monday for parts of the coastal waters, thanks to a fresh northwest swell and steep, choppy seas. Significant wave heights are expected to build to 8–11 feet offshore Monday, with the highest seas mainly beyond 30–40 nautical miles north of Cape Falcon. Small boats should steer clear of heading far offshore until conditions ease, according to NWS Portland.
Afternoon Showers Mostly Light
After heavier downpours on Saturday, June 27, Sunday, June 28 is serving up lighter and more scattered action, with brief, passing showers instead of an all-day soaking. Showers will be most likely in the Cascades and foothills, while the lowlands and downtown Portland should see only occasional spits. For a look back at Saturday’s heavier cells and street impacts, see our soaked Saturday recap.
Timing And Temperatures
Expect a high near 69°F Sunday with west winds around 3–8 mph, then a low near 53°F tonight, with temperatures holding in the mid-50s overnight. Monday, June 29 through Wednesday, July 1 look mainly dry with highs in the upper 60s to around 70°F. A gradual warming trend builds late in the week, with highs climbing into the mid-to-upper 70s by Friday and near 80°F on Independence Day, Saturday, July 4. The pattern is driven by persistent onshore flow that keeps coastal areas cool while inland valleys warm modestly, per NWS Portland.
What This Means For Your Weekend Plans
Keep a lightweight rain jacket handy for any afternoon plans in case one of those quick showers finds you, and give yourself a little extra travel time if you hit a passing burst of rain. Boat trips are best kept to protected waters until the advisory lifts. Otherwise, the trend heads in the right direction, with drier skies and warmer afternoons lining up in time for the Fourth of July.
