Portland, Oregon Weather Alert Today: Cold Rain, Slick Roads, and Frost Risk Ahead

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Oregon – Gray skies press low over the Willamette Valley as steady showers move through early this morning. In Portland, winter weather feels raw and unsettled, with damp roads and cold air combining to create travel concerns.

The National Weather Service reports rain continuing through the morning, with temperatures hovering in the upper 30s. Snow levels sit well above city elevations, but the cold ground keeps bridges and overpasses slick. Commuters should expect wet pavement and reduced traction during the early drive.

By late morning, showers become more scattered. Highs climb into the mid-40s, though sunshine remains limited. Even light rain can linger on shaded roads, especially along I-5, I-84, and surface streets near the river. Plan extra time and increase following distance.

Conditions calm tonight, but colder air settles in behind the departing showers. Lows dip into the upper 30s, and patchy frost develops toward early Friday. Any leftover moisture may refreeze, creating isolated black ice before sunrise. This is a classic flash-freeze setup for early January.

Friday brings a quieter winter pattern. Clouds linger, but rain holds off. Temperatures rebound near 50 during the afternoon, offering a brief break for outdoor plans. Still, mornings remain chilly, so watch sidewalks and driveways for slick spots.

The weekend trends unsettled again. Saturday stays mostly cloudy with highs near the upper 40s. Light rain chances return late Saturday night into Sunday, keeping roads damp. Sunday remains cool and gray, with periodic showers and highs near 49.

Early next week turns slightly milder, though rain chances persist. Meteorologists continue tracking Pacific systems that may strengthen later. By the end of January, Portland gains about 40 minutes of extra daylight, a small but welcome winter shift.

Seeing slick streets or icy patches where you live? Share what conditions look like in your neighborhood.

Five-Day Outlook for Portland, Oregon

  • Today: Showers early, cool, high near 46
  • Friday: Mostly cloudy, drier, high near 50
  • Saturday: Mostly cloudy, cool, high near 48
  • Sunday: Rain chances return, high near 49
  • Monday: Scattered rain, milder, high near 53