Oregon – A sharp, icy chill grips Eugene this morning as freezing fog coats sidewalks and windshields in a thin glaze. Temperatures sit at 29 degrees at Mahlon Sweet Field, and visibility has dropped to around half a mile in spots.
Widespread frost blankets lawns and rooftops across Lane County. Bridges and overpasses along I-5 and Beltline Highway could turn slick through mid-morning. Drivers should slow down and leave extra distance, especially where fog thickens suddenly.
Patchy fog lingers before 10 a.m., then skies gradually brighten. Highs reach near 52 degrees this afternoon under partial sunshine. The turnaround will feel dramatic after such a biting start.
Another cold night follows with lows near 32. Patchy frost redevelops before sunrise. Friday improves, with dense fog early and sunshine returning by afternoon. Highs climb to around 55 degrees.
The weekend brings a transition. Saturday carries a 20 percent chance of light rain after 10 a.m. Highs hover near 51. Rain chances increase Saturday night into Sunday, with a 50 percent chance and patchy fog. Sunday warms to 57 degrees despite scattered showers.
March begins unsettled but milder. Monday trends partly sunny with highs near 59. Temperatures rise into the lower 60s by Tuesday. A wetter system may approach by midweek.
While snow impacts the Northern Plains and heavy rain targets the Gulf Coast, western Oregon sits in a late-winter pattern. Still, freezing fog remains a serious hazard locally. Flash freezing can occur when daytime melt refreezes after sunset.
Five Day Outlook for Eugene, Oregon:
Today: Frost and patchy fog, then partly sunny, high 52.
Friday: Early fog, then sunny, high 55.
Saturday: Slight chance of rain, high 51.
Sunday: Chance of rain, high 57.
Monday: Partly sunny, high 59.



