Portland is starting off on the gray and chill side, with morning clouds keeping temperatures in the mid to upper 50s and an afternoon high pegged near 67°F. Northwest breezes are expected to pick up through the day, and those low clouds and pockets of fog along the river and coast should finally lift by mid to late afternoon.
Afternoon Gusts And Marine Advisory
By this afternoon, winds in the Willamette Valley are expected to run around 7 to 10 mph, with gusts in the 18 to 21 mph range. More exposed spots near the Columbia River Gorge could see stronger bursts. Out on the water, mariners and small-boat operators should plan for elevated seas of about 8 to 10 feet, and a Small Craft Advisory is in place for parts of the coastal waters and the Columbia River Bar into the early afternoon.
Heat Builds Monday, June 1, And Tuesday, June 2, 2026
Early next week, high pressure will slide in and flip the switch from springlike to summerlike in a hurry. Highs are expected to jump into the mid 80s on Monday, June 1, 2026, and could top out near 90 to 92°F on Tuesday, June 2, 2026. According to the National Weather Service Portland, there is high confidence, greater than 75 percent, that the Portland–Vancouver area will hit 90°F or higher on Tuesday. Forecasters are calling for a moderate heat risk across the metro, with a small, around 10 percent, chance of Major Heat Risk developing in some neighborhoods.
Cooling Resources And What To Do
If you do not have air conditioning, now is the time to review the city’s cooling resources and the Cooling Portland program for help and for locations of open cooling spaces. Officials recommend staying well hydrated, avoiding strenuous outdoor work during the hottest afternoon hours, and checking in on older adults or medically vulnerable neighbors. More details and local options are available through City of Portland heat resources.
Midweek Outlook
The hot stretch should be short-lived. The ridge is expected to weaken by Wednesday, June 3, 2026, as a frontal system moves in, bringing cooler temperatures and a chance of showers. Forecasters at the National Weather Service Portland say highs should drop back into the 70s with cooler nights returning after Tuesday.
