Weather
Oregon-Washington Weather Alert: ¼-Mile Fog Today, Rain Nov 12-16
Pendleton, OR – Thick fog is blanketing portions of northeastern Oregon and southeastern Washington, reducing visibility to a quarter mile or less. Drivers face hazardous conditions Thursday morning b
By Evan Cross · 2026-11-12T12:06:10.566Z
Pendleton, OR – Thick fog is blanketing portions of northeastern Oregon and southeastern Washington, reducing visibility to a quarter mile or less. Drivers face hazardous conditions Thursday morning before temperatures climb into the 60s, followed by gusty winds Friday and widespread rain chances Sunday.
According to the National Weather Service in Pendleton, a Dense Fog Advisory remains in effect until 11 a.m. PST Thursday, November 12.
The advisory covers the foothills of Oregon's northern Blue Mountains and the Blue Mountain foothills of Washington.
Affected communities include Pendleton, Pilot Rock, Athena, Weston, Waitsburg, Dayton and Walla Walla.
Quarter Mile Visibility Creates Morning Travel Hazards Conditions at Eastern Oregon Regional Airport in Pendleton showed fog, a temperature of 43 degrees and visibility of just 0.24 miles early Thursday.
Humidity reached 100%, with calm winds contributing to the foggy conditions.
The National Weather Service warns that low visibility could make driving hazardous, particularly along rural highways and roads approaching the Blue Mountains.
Motorists traveling Interstate 84 near Pendleton or Highway 11 toward Walla Walla should remain alert for sudden visibility changes.
Use headlights, reduce speed and leave additional distance between vehicles.
Fog should gradually improve after 10 a.m., with Pendleton reaching approximately 65 degrees Thursday afternoon.
Friday Warmup Brings 69 Degrees and Gusty Winds The weather changes again Friday as temperatures climb toward 69 degrees, nearly 26 degrees warmer than Thursday morning's observed 43 degrees.
However, the warmer weather comes with increasing winds.
Southeast winds of 14 16 mph could gust to 31 mph Friday.
A 30% chance of showers develops after 4 p.m., with rain chances increasing to 40% Friday evening before 10 p.m.
Residents should consider securing lightweight outdoor decorations and loose yard items before winds strengthen.
Saturday provides another opportunity for outdoor projects, with mostly sunny skies and a high near 62 degrees.
Sunday Rain Chances Jump to 70% The next significant change arrives Sunday.
Forecasters expect a 70% chance of showers in Pendleton, with mostly cloudy skies and a high near 59 degrees.
Rain chances remain at 70% Sunday night as temperatures fall toward 37 degrees.
Showers could continue Monday, especially before 4 p.m., with a 50% precipitation chance.
Looking farther ahead, temperatures may fall to around 32 degrees Monday night and 30 degrees Tuesday night.
Although the supplied local outlook does not predict snow or freezing rain, any lingering moisture on untreated surfaces could become a concern if temperatures reach freezing.
Pendleton Five Day Weather Outlook: Nov. 12 16 Thursday, Nov. 12: Dense fog before 10 a.m., then mostly cloudy. High 65°F. Thursday night low 43°F. Friday, Nov. 13: Cloudy, high 69°F. Wind gusts to 31 mph. A 30% chance of showers after 4 p.m. Friday night low 40°F, with a 40% rain chance before 10 p.m. Saturday, Nov. 14: Mostly sunny, high 62°F. Winds could gust to 21 mph. Saturday night mostly cloudy, low 40°F. Sunday, Nov. 15: Showers likely, with a 70% precipitation chance. High 59°F. Sunday night rain chance 70%, low 37°F. Monday, Nov. 16: A 50% chance of showers, mainly before 4 p.m. Mostly cloudy, high 54°F. Monday night low 32°F, with a slight chance of earlier evening showers. Tuesday brings partly sunny skies and a high near 51 degrees, followed by a colder night near 30 degrees.
As Thanksgiving approaches, residents should continue monitoring changing temperatures and precipitation patterns. The available outlook does not establish a specific holiday snowstorm.
Are you encountering dense fog around Pendleton, Walla Walla or the Blue Mountains? Tell us what visibility looks like in your neighborhood.