Portland Weather: Seasonable Temperatures Expected This Week, Slight Thunderstorm Risk East of Cascades
Portland, OR residents can expect a return to seasonable weather this week, with temperatures cooling slightly today and remaining around average for August. While much of the week will be sunny, there's a slight chance of thunderstorms east of the…

Portland, OR, August 9, 2026 —
PORTLAND, OR – Residents of Portland are anticipating a return to more typical August weather patterns this week. Following recent conditions, temperatures are set to cool slightly starting today, settling into averages commonly seen for this time of year.
The forecast indicates a predominantly sunny week for the city. However, as the week progresses, a slight possibility of thunderstorms is predicted for areas east of the Cascade Mountains. This chance of inclement weather is expected late next week.
The shift towards seasonable temperatures suggests a moderation from any preceding warmer spells, offering a more stable weather outlook for outdoor activities across the region.
Further details regarding the specific timing and intensity of the potential thunderstorms east of the Cascades were not provided in the trend summary. Residents in those areas may wish to monitor updated forecasts as the week unfolds.
Story summarized from the original created by Michael Fecca on www.kptv.com, see more information here.