Portland starts Saturday on the gray and cool side, with temperatures near 54°F at Portland International Airport, but inland spots will warm up fast. By afternoon, neighborhoods away from the water should climb into the upper 70s to around 80°F, and most of the metro is expected to top out near 79°F. The coast, stuck under low clouds, will run a solid 15–20 degrees cooler.
North-northwest winds stay on the lighter side early in the day (around 3–8 mph) but will freshen at times, and overnight lows will slip back into the low 50s. Inland gusts could reach about 21 mph Saturday night, while coastal areas stay cooler and cloudier under a persistent marine layer. If you are headed to the river or the Gorge, plan on sunnier, warmer conditions inland and jacket weather near the water and along the shoreline.
Memorial Day Rain And Wind
A major pattern shift moves in late Sunday night into Monday, setting up a soggy Memorial Day on Monday, May 25, 2026. Widespread showers are most likely between about 11 a.m. and 5 p.m., with a daytime high near 64°F and a 90% chance of rain. Over 24 hours, most spots can expect between 0.25 and 1.00 inch of rainfall, with the heaviest totals along the coast, Coast Range and Cascades. Breezy south-southwest winds are expected to kick up gusts over 25 mph across the metro, with stronger gusts along the coast, and a few thunderstorms are on the table, according to the National Weather Service Portland.
Plan Ahead For Outdoor Events
If your Memorial Day plans involve barbecues or backyard parties, be ready to pivot indoors or anchor those canopies with serious stakes. Gusty winds and steady rain will cause the biggest headaches. Small craft operators should keep a close eye out for building seas and potential marine advisories Monday afternoon. Public transit riders should remember that TriMet runs a Saturday schedule on Memorial Day; check TriMet for trip-planning help and holiday service details.
Through The Week
Showers and a few thunderstorms may hang around into Tuesday before drier, cooler air filters in by midweek, with highs rebounding to around 70°F by Wednesday. Keep tabs on updated forecasts and any last-minute wind or marine advisories as this system moves through.
