Oregon begins the day under a gloomy, restless sky as early December storms approach Portland, bringing persistent rain, lightning, and strengthening south winds. The pavement is already shining from predawn showers, and winds might flip umbrellas before lunchtime as another line of thunderstorms moves inland. Morning commuters may expect slower traffic on I-5 and I-205 as visibility decreases and spray rises off the roads.
According to the National Weather Service, rain will continue throughout the day, with thunderstorms possible between late morning and early evening. South winds increase to 14 mph, with gusts up to 28 mph during stronger storms. Rainfall is constant, and stronger pockets may emerge within thunderstorms. If you have early Christmas plans this week, make sure to factor in additional time and be vigilant for unexpected downpours when approaching I-84.
By Tuesday, rain had settled over the region. Breezy south winds intensify again, with gusts reaching 26 mph later in the day. Thunderstorms are not forecast on Tuesday, but steady rain and chilly marine air keep roadways wet and occasionally slick. Drivers should be aware of ponding in low-lying areas.
Wednesday brings another round of rain, though the winds ease slightly. The day begins damp and soon shifts to scattered showers. High temperatures linger around 50 degrees, cool enough that any evening rain could provide patchy slick areas on bridges, but no winter precipitation is predicted in the metro.
Five-Day Outlook
- Wednesday: Rain early, then showers. High near 50.
- Thursday: Rain likely. Cloudy, low 43, high 54.
- Friday: Rain continues. High near 49.
- Saturday: Rain likely. High near 47.
- Sunday: Mostly cloudy, high near 48.
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