EUREKA, Calif. – The North Coast is heading into a classic October stretch — foggy mornings, bright afternoons, and mild temperatures perfect for fall outings. Drivers along U.S. 101 and near Humboldt Bay should prepare for reduced visibility each morning through Friday before sunshine returns by midday.
According to the National Weather Service in Eureka, patchy fog will form near the coast late Wednesday into Thursday morning, with calm winds and lows in the upper 40s. By late morning, skies will clear, and highs will reach the low 60s inland and upper 50s along the shoreline. The quiet weather pattern will hold through Friday, offering several days of ideal fall conditions for coastal hiking, harbor visits, or pumpkin patch trips.
Forecasters expect only a slight chance of showers late Saturday as a weak Pacific disturbance brushes the northern coastline. Otherwise, high pressure will dominate, keeping rain chances low and temperatures steady. Afternoon highs will range from 63°F to 65°F, with light winds and cool, clear nights around 50°F.
Travelers are encouraged to use low-beam headlights in early fog and watch for slick spots on bridges and shaded roadways during the morning commute. Conditions will remain safe for weekend travel, making this one of the most pleasant stretches of fall weather so far.
After a foggy start, Humboldt County will enjoy a sunny, tranquil weekend — a welcome reward for those craving California’s gentle coastal fall charm.
Five-Day Forecast for Eureka, CA:
Wed: 61/47 – Mostly sunny; light south breeze.
Thu: 59/48 – Patchy fog early; mild afternoon sun.
Fri: 63/49 – Sunny; calm winds and pleasant.
Sat: 64/50 – Mostly sunny; slight chance of late showers.
Sun: 58/45 – Partly cloudy; cooler, light breeze.
