Portland

Portland Braces for Showers and Thunderstorms, National Weather Service Advises Caution

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Published on May 17, 2025
Portland Braces for Showers and Thunderstorms, National Weather Service Advises CautionSource: Unsplash / {Brian Yurasits}

According to the latest weather forecasts, Portland residents can expect a wet and thundery week ahead. With showers dotting the seven-day outlook, the National Weather Service in Portland, OR, is advising locals to keep their umbrellas at hand. The current humidity level is pegged at a saturated 100%, while visibility is reduced to a mere 2 miles, as the National Weather Service notes.

The day's weather is set to transition into showery conditions, coupled likely with thunderstorms after 11:00 a.m., boasting an 80% chance of precipitation. Expected rainfall is projected to be less than a tenth of an inch, but thunderstorms could potentially upend that forecast with higher amounts. The mercury will hover near 64 degrees, accompanied by light and variable winds shifting to a more westerly direction. Coming night, the likelihood of showers and thunderstorms doesn't wane much, sitting at a 40% chance, as night-time temperatures dip to around 47 degrees, carried by west northwest winds moving at a modest clip of 5 to 9 mph.

Looking forward to Sunday, the overcast temperament seems reluctant to break, with a 40 percent chance of showers in the prediction and a high of around 63 degrees. Light westerly breezes will persist. By Sunday night, the sky is expected to offer a brief intermission, turning partly cloudy with a consistent low temperature of 47 degrees.

Transitioning into the week, the forecast asserts that showers are likely on Monday with a substantial 70% chance. Overcast conditions will prevail, and temperatures will remain consistent near the 63-degree mark, as south-southwest winds of 5 to 7 mph keep the air stirred. Monday night promises a partially clear sky before 11:00 p.m., with a continuing 40 percent chance of showers. Highs for the following days will progressively climb, peaking near 71 degrees by Friday.