Oregon – Windshields bead with icy mist as freezing fog settles into the foothills of the Northern Blue Mountains, blurring headlights and swallowing road signs. Visibility drops fast, pavement feels slick, and cold air presses close to the ground, setting a tense tone for travel around Pendleton.
According to the National Weather Service in Pendleton, a Freezing Fog Advisory remains in effect through mid-afternoon, with visibility reduced to one quarter mile or less at times. An Air Stagnation Advisory continues into early next week as calm winds trap pollutants near the surface. These conditions affect Pendleton, Pilot Rock, Athena, and nearby valley locations.
Drivers should expect hazardous conditions along Highway 11, Highway 30, and local roads during the morning and evening hours. Fog moisture can freeze on contact, creating black ice on bridges, shaded stretches, and untreated surfaces. Slow down, use headlights, and leave extra space between vehicles. To be fair, sunshine helps later in the day, but cold nights quickly reset the risk.
Temperatures climb into the low to mid-40s during the day, then fall sharply after sunset. Nighttime lows dip into the low to mid-20s through the weekend. Frost forms easily, and slick spots may redevelop by early morning. Weekend weather stays dry and mostly sunny, yet Winter hazards linger during colder starts.
Air quality may deteriorate under stagnant conditions, especially for people with heart or lung disease. Limiting outdoor exertion and avoiding residential burning can help reduce exposure.
Looking ahead, Pendleton stays dry with gradual warming next week, though cold mornings persist.
Five-Day Outlook for Pendleton, OR
Friday: Clearing fog, mostly sunny, high near 41.
Saturday: Mostly sunny, high near 42, icy early.
Sunday: Mostly sunny, high near 41, cold morning.
Monday: Mostly sunny, high near 42.
Tuesday: Mostly sunny, high near 43.
