Oregon – Headlights cut through misty rain before sunrise, reflecting off wet pavement and lingering fog across the southern Willamette Valley. The air feels damp and chilly, setting the stage for a Weather Alert–style pattern that could complicate post-Christmas travel into the weekend and early next week.
According to the National Weather Service in Portland, rain remains likely across Eugene and surrounding communities today, with patchy fog reducing visibility at times. Morning temperatures hover near 40 degrees, while afternoon highs reach the upper 40s to low 50s. Roads remain slick, especially during steadier showers, creating slower travel on I-5 and local connectors.
Rain chances increase again Friday, with showers becoming more widespread and persistent. Visibility may drop during heavier rain, and fog could redevelop during evening and early morning hours. Plan extra time if traveling, and expect changing conditions through Friday night.
A subtle winter shift follows. By Saturday, rain tapers to scattered showers, and cooler air filters in. Highs struggle to reach the mid-40s, while overnight temperatures dip toward the low 30s. Patchy fog becomes more likely, and areas of frost may develop during clearer breaks, especially away from city centers.
Sunday brings partial sunshine but starts cold. Morning fog lingers, and temperatures rise slowly, topping out near the mid-40s. Sunday night into Monday, lows dip near freezing again, raising the potential for slick spots on untreated roads during early drives. While snow levels remain well above the valley floor, nearby passes could see winter travel issues.
Looking ahead, early next week stays cool and mostly dry, with patchy fog continuing during overnight and morning hours. For now, keep headlights on in fog, slow down on wet roads, and be ready for colder mornings as this evolving winter weather pattern settles in through the last week of December.
