Dense fog is the main weather concern early today across Eugene and the southern Willamette Valley, especially along the I-5 corridor. Ground observations indicate areas of very low visibility, at times reduced to one-quarter mile or less, prompting a Dense Fog Advisory. Conditions are expected to gradually improve as daylight increases, with fog lifting or dissipating by mid-morning, around 10 AM.
Once the fog clears, Sunday will turn partly cloudy with mild afternoon temperatures near 44 degrees. Winds will remain light from the north-northeast, helping maintain a calm and stable pattern across the region.
The mild and quiet weather continues into early next week. Monday begins with another chance for patchy fog, particularly in valley and low-lying areas, before giving way to partly cloudy skies later in the day. High temperatures will remain consistent, topping out in the mid-40s. Tuesday and Wednesday look similar, featuring a mix of sunshine and clouds with light, variable winds and no significant weather disruptions…