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High-Pressure Ridge Extends Dry, Mild Stretch in Oregon Into Next Week

Forecast models point to a midweek breakdown that could bring rain or snow back to the region.

Overview

  • Portland stays sunny and dry through early next week with highs around 53–54°F under a persistent ridge of high pressure.
  • East winds channeled through the Columbia River Gorge are producing gusts from 35–65 mph in typical hotspots, with the strongest winds Friday into Saturday before easing Sunday.
  • Central Oregon remains warmer than normal with highs mostly in the 40s to 50s and the potential to reach near 60°F on Tuesday, though a trapped fog layer kept some lower elevations cooler Friday.
  • An Air Stagnation Advisory continues, with an early Friday Air Quality Alert and recent overnight readings reaching unhealthy levels under stagnant surface conditions.
  • Nights remain cold with lows in the teens and 20s, and a slight chance of rain or snow returns late Wednesday or Thursday as the ridge weakens.