EUGENE, Ore. – Streetlights glowed dim through thick fog across the southern Willamette Valley before dawn, as visibility dropped to less than a half-mile in parts of Eugene and Springfield. The air felt heavy and still — a quiet, silvery calm before the day’s sunshine cuts through. For drivers along I-5, Highway 99, and country backroads near Junction City and Creswell, slow speeds and headlights are essential through the midmorning.
According to the National Weather Service in Portland, patchy dense fog should lift by late morning, revealing mild fall sunshine and highs in the low 60s. A calm pattern will hold through Sunday, ideal for outdoor markets, early leaf cleanup, or prepping gardens ahead of next week’s wetter weather. The next noticeable change begins late Sunday night, when clouds build ahead of a Pacific system that brings a slight chance of rain Monday afternoon.
The shift marks Oregon’s slow slide toward a wetter November pattern — a sign the early winter storm track is strengthening offshore. Temperatures will stay mild through Veterans Day, with highs in the upper 50s, before another system arrives midweek. By Wednesday, steady rain returns across western Oregon, possibly lingering into Friday.
Travelers heading north toward Salem or Portland should expect reduced visibility early today and heavier traffic once the rain resumes. For now, the Valley enjoys one more stretch of classic late-fall calm — crisp mornings, golden afternoons, and just enough sun to make the coming rain feel like a reset rather than a burden.
Five-Day Forecast for Eugene, OR:
Sat: 61/43 – Patchy dense fog early; mostly sunny later.
Sun: 64/44 – Morning fog; partly sunny and mild.
Mon: 66/47 – Mostly cloudy; slight chance of rain.
Tue (Veterans Day): 59/45 – Mostly cloudy; light breeze.
Wed: 61/47 – Rain likely; turning cooler late.
