Headlights glow through thick coastal fog along U.S. 101 this morning as Eureka wakes to a damp, muted start typical of early December. Pavement feels slick under slow-moving traffic, and the air carries that cool, salty stillness that often arrives before a shift in weather. Commuters should expect reduced visibility through midmorning and plan extra time for neighborhood routes and school zones.
According to the National Weather Service, patchy fog may linger past 10 a.m. before skies turn mostly cloudy with highs near the upper 50s. Conditions stay quiet today, but clouds will thicken again Tuesday with a high near 60° and calm winds. Meteorologists now track a drizzle chance Wednesday, especially between 7 a.m. and early afternoon as coastal moisture deepens. While totals remain light, even minor precipitation can slow travel and create slick spots on lightly traveled rural roads.
By Thursday and Friday, skies brighten again with highs near 59–60°, offering a comfortable window for outdoor errands, holiday decorating, or travel preparation. Nights trend cool but stable, generally in the mid to upper 40s.
Nationally, a more intense pattern continues to build. A fast-moving clipper system may drop bi-daily snow across the Great Lakes December 11–17, with lake-effect snow expected in Michigan, Wisconsin, Illinois, Indiana, Ohio, and western New York. Arctic air follows, driving the coldest temperatures of the season into New England, the Mid-Atlantic, the Ohio Valley, and parts of the Midwest this weekend. Travelers heading east should watch for flash-freezing risks where daytime melt refreezes after sunset.
Five-Day Outlook (Eureka, CA)
• Tuesday: Mostly cloudy, high 60°.
• Wednesday: Chance of drizzle, high 60°.
• Thursday: Mostly sunny, high 59°.
• Friday: Mostly sunny, high 60°.
• Saturday: Mostly sunny with slight drizzle chance late, high 58°.
