California – A biting chill hangs over Eureka this morning as low clouds drift across rooftops and thin ice forms on windshields before sunrise. Grass blades shine with frost, and pavement feels slick in shaded neighborhoods—an early December warning that colder mornings are settling in fast.
According to the National Weather Service, a Frost Advisory remains in effect until 9 a.m., with temperatures dipping to the mid-30s, cold enough to harm sensitive plants and create brief slippery patches on untreated surfaces. Residents should protect outdoor vegetation and move slowly on leaf-covered sidewalks where frost can hide.
A Coastal Flood Advisory also continues through 12 p.m., driven by high astronomical tides around Humboldt Bay. Up to half a foot of saltwater overflow is expected near shorelines, tidal channels, and low-lying roads such as Jackson Ranch Road and access points near King Salmon. Water may rise one to two hours before and after late-morning high tide. Drivers should avoid flooded lanes and never pass barricades, as depth can change suddenly.
By afternoon, sunshine returns with highs near 57°F, but models show increasing moisture ahead of Friday and Saturday, bringing rising rain chances and breezy north-northwest winds. While temperatures stay above freezing locally, meteorologists continue tracking early-season cold surges across the northern U.S. Long-range guidance hints at lake-effect snow from December 11–17, a potential travel disruptor for anyone connecting through Midwest or Great Lakes hubs.
Through the weekend, expect cooler evenings, patchy fog, and a steady December feel as the region shifts toward wetter, more unsettled patterns.
Five-Day Outlook (Eureka, CA)
• Today: Mostly sunny, high 57°F.
• Friday: Chance rain, high 58°F.
• Saturday: Chance rain, high 57°F.
• Sunday: Chance rain, high 58°F.
• Monday: Mostly cloudy, high 58°F.
