Portland

Portland Braces for Showers and Thunderstorms After Sunny Week

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Published on September 04, 2025
Portland Braces for Showers and Thunderstorms After Sunny WeekSource: Google Street View

Portland residents might want to enjoy the mild warmth while it lasts, because the city is bracing for a wetter and possibly stormier end to the week. Today's weather will be mostly sunny with a comfortable high of 88 degrees, as reported by the National Weather Service (NWS), but changes are on the horizon. The skies are set to become partly cloudy tonight, as temperatures drop down to around 65 degrees.

As we move into Friday, there's a 20 percent chance of showers beginning after 11 a.m., a light sprinkle to remind us that Portland’s sunny days are not quite to be taken for granted. The NWS forecasts a slight drop in temperatures with a high near 86 degrees under partly sunny skies. These cooler temps might come as a relief to those weary of the summer heat, though they are accompanied by the looming promise of precipitation.

For those planning weekend activities, you might want to pack an umbrella. Saturday has a 30 percent chance of showers and could bring thunderstorms after 5 p.m. The mostly cloudy skies will offer a high near 79 degrees and a gentle south southwest wind. Continuing into Saturday night, the chances of showers and thunderstorms rise slightly, creating a 40 percent probability of rain with lows around 62 degrees.

Looking ahead to the next few days, the weather seems determined to remain unsettled. Sunday's forecast includes a 20 percent chance of showers in the afternoon with partly sunny conditions and a high near 78. The clouds thicken come Sunday night, as chances of showers increase, especially after 11:00 p.m. The early part of next week is expected to see persistent showers and possible thunderstorms, with highs hovering in the low 70s and nights at a constant low around 62 degrees, suggestive of a pattern reluctant to quickly shift away from its wetter inclinations.

All in all, Portland's weather seems to be taking a turn from its earlier sunny disposition to a damp series of days. For the latest weather updates and detailed forecasts, Portlanders can visit the NWS website.