Portland Basks in One Last Sunny Stunner Before the Rain Rolls Back In

Portland starts Thursday with clear skies and temperatures around 63 degrees, setting up a mostly sunny day across the city. Highs should reach about 76 degrees, with light southwest winds and almost no chance of rain. It is the kind of late-August forecast that makes a patio, park or riverside walk look like a pretty solid plan.

Sunny Weather Holds Through Friday

Thursday afternoon will stay bright, with winds shifting west at roughly 5 to 6 mph. Friday looks nearly identical, bringing mostly sunny skies and another high near 76, while overnight lows dip into the upper 50s. The National Weather Service Portland forecast lists no watches, warnings or advisories for the area.

Weekend Brings Cooler Temperatures And A Shower Chance

Saturday will be cooler, with a high near 72 and a 20% chance of rain showers between 11 a.m. and 5 p.m. Sunday should rebound slightly to around 73, though patchy fog is possible before 8 a.m. before skies turn mostly sunny. Outdoor plans can still work, but Saturday is the day to keep a backup option handy.

Rain Chances Build Early Next Week

Monday remains mild near 75 degrees, but a slight chance of light rain arrives after 5 p.m. Rain chances increase Tuesday, when mostly cloudy skies and a high near 72 are expected, followed by another chance of rain Wednesday with temperatures topping out around 70. The broader pattern is trending cooler and more unsettled as September begins.