Oregon — Headlights fade quickly into a gray wall along Interstate 84 this morning. Taillights appear, then vanish. Dense fog is clinging tightly to the foothills of the Northern Blue Mountains, creating sudden and dangerous travel conditions.
According to the National Weather Service in Pendleton, dense fog below one-quarter mile is impacting I-84 near Cabbage Hill and surrounding stretches. Visibility may drop rapidly with little warning, especially near Pendleton and Pilot Rock. Motorists should expect abrupt changes through the morning hours.
Current temperatures sit in the upper 30s, with calm winds allowing fog to linger. Moist air trapped near the surface keeps conditions locked in place. Drivers should reduce speed, use headlights, and leave extra following distance. Even brief stops or slowdowns could escalate quickly in low visibility.
Fog gradually thins later this morning as partial sunshine develops. Highs reach near 49 today, offering slight improvement but not a full clearing everywhere. Areas of fog may redevelop tonight, especially in low spots and along river valleys.
Friday brings patchy fog early, then brighter conditions with highs near the low 50s. Saturday turns milder, with temperatures pushing close to 59. Clouds increase late Saturday as the next system approaches.
Rain chances rise Saturday night and become more widespread Sunday. Wet roads and reduced visibility could replace fog as the next travel concern. Early next week trends quieter, with temperatures remaining seasonable for February.
National outlooks point to above-normal temperatures developing later next week across much of the West, hinting at a gradual shift away from persistent fog patterns.
Traveling I-84 this morning? Tell us what visibility looks like where you are.
Five-Day Outlook for Pendleton, Oregon
- Today: Areas of dense fog early, then partly sunny. High near 49.
- Friday: Patchy morning fog, then mostly sunny. High near 53.
- Saturday: Partly sunny, mild. High near 59.
- Sunday: Rain likely. High near 59.
- Monday: Slight chance of rain early, then clearing. High near 52.


